diff --git a/prompb/types.pb.go b/prompb/types.pb.go
index f9c75999b..cb3e27c24 100644
--- a/prompb/types.pb.go
+++ b/prompb/types.pb.go
@@ -170,7 +170,7 @@ func (x LabelMatcher_Type) String() string {
 }
 
 func (LabelMatcher_Type) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_d938547f84707355, []int{14, 0}
+	return fileDescriptor_d938547f84707355, []int{13, 0}
 }
 
 // We require this to match chunkenc.Encoding.
@@ -202,7 +202,7 @@ func (x Chunk_Encoding) String() string {
 }
 
 func (Chunk_Encoding) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_d938547f84707355, []int{16, 0}
+	return fileDescriptor_d938547f84707355, []int{15, 0}
 }
 
 type MetricMetadata struct {
@@ -1064,62 +1064,6 @@ func (m *MinimizedTimeSeries) GetHistograms() []Histogram {
 	return nil
 }
 
-// can be used for label name or label value
-type MinimizedLabelSymbol struct {
-	Offset               uint32   `protobuf:"varint,1,opt,name=offset,proto3" json:"offset,omitempty"`
-	Length               uint32   `protobuf:"varint,2,opt,name=length,proto3" json:"length,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
-}
-
-func (m *MinimizedLabelSymbol) Reset()         { *m = MinimizedLabelSymbol{} }
-func (m *MinimizedLabelSymbol) String() string { return proto.CompactTextString(m) }
-func (*MinimizedLabelSymbol) ProtoMessage()    {}
-func (*MinimizedLabelSymbol) Descriptor() ([]byte, []int) {
-	return fileDescriptor_d938547f84707355, []int{10}
-}
-func (m *MinimizedLabelSymbol) XXX_Unmarshal(b []byte) error {
-	return m.Unmarshal(b)
-}
-func (m *MinimizedLabelSymbol) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	if deterministic {
-		return xxx_messageInfo_MinimizedLabelSymbol.Marshal(b, m, deterministic)
-	} else {
-		b = b[:cap(b)]
-		n, err := m.MarshalToSizedBuffer(b)
-		if err != nil {
-			return nil, err
-		}
-		return b[:n], nil
-	}
-}
-func (m *MinimizedLabelSymbol) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_MinimizedLabelSymbol.Merge(m, src)
-}
-func (m *MinimizedLabelSymbol) XXX_Size() int {
-	return m.Size()
-}
-func (m *MinimizedLabelSymbol) XXX_DiscardUnknown() {
-	xxx_messageInfo_MinimizedLabelSymbol.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_MinimizedLabelSymbol proto.InternalMessageInfo
-
-func (m *MinimizedLabelSymbol) GetOffset() uint32 {
-	if m != nil {
-		return m.Offset
-	}
-	return 0
-}
-
-func (m *MinimizedLabelSymbol) GetLength() uint32 {
-	if m != nil {
-		return m.Length
-	}
-	return 0
-}
-
 type LabelRef struct {
 	NameRef              uint64   `protobuf:"varint,1,opt,name=name_ref,json=nameRef,proto3" json:"name_ref,omitempty"`
 	ValueRef             uint64   `protobuf:"varint,2,opt,name=value_ref,json=valueRef,proto3" json:"value_ref,omitempty"`
@@ -1132,7 +1076,7 @@ func (m *LabelRef) Reset()         { *m = LabelRef{} }
 func (m *LabelRef) String() string { return proto.CompactTextString(m) }
 func (*LabelRef) ProtoMessage()    {}
 func (*LabelRef) Descriptor() ([]byte, []int) {
-	return fileDescriptor_d938547f84707355, []int{11}
+	return fileDescriptor_d938547f84707355, []int{10}
 }
 func (m *LabelRef) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1187,7 +1131,7 @@ func (m *Label) Reset()         { *m = Label{} }
 func (m *Label) String() string { return proto.CompactTextString(m) }
 func (*Label) ProtoMessage()    {}
 func (*Label) Descriptor() ([]byte, []int) {
-	return fileDescriptor_d938547f84707355, []int{12}
+	return fileDescriptor_d938547f84707355, []int{11}
 }
 func (m *Label) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1241,7 +1185,7 @@ func (m *Labels) Reset()         { *m = Labels{} }
 func (m *Labels) String() string { return proto.CompactTextString(m) }
 func (*Labels) ProtoMessage()    {}
 func (*Labels) Descriptor() ([]byte, []int) {
-	return fileDescriptor_d938547f84707355, []int{13}
+	return fileDescriptor_d938547f84707355, []int{12}
 }
 func (m *Labels) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1291,7 +1235,7 @@ func (m *LabelMatcher) Reset()         { *m = LabelMatcher{} }
 func (m *LabelMatcher) String() string { return proto.CompactTextString(m) }
 func (*LabelMatcher) ProtoMessage()    {}
 func (*LabelMatcher) Descriptor() ([]byte, []int) {
-	return fileDescriptor_d938547f84707355, []int{14}
+	return fileDescriptor_d938547f84707355, []int{13}
 }
 func (m *LabelMatcher) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1358,7 +1302,7 @@ func (m *ReadHints) Reset()         { *m = ReadHints{} }
 func (m *ReadHints) String() string { return proto.CompactTextString(m) }
 func (*ReadHints) ProtoMessage()    {}
 func (*ReadHints) Descriptor() ([]byte, []int) {
-	return fileDescriptor_d938547f84707355, []int{15}
+	return fileDescriptor_d938547f84707355, []int{14}
 }
 func (m *ReadHints) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1452,7 +1396,7 @@ func (m *Chunk) Reset()         { *m = Chunk{} }
 func (m *Chunk) String() string { return proto.CompactTextString(m) }
 func (*Chunk) ProtoMessage()    {}
 func (*Chunk) Descriptor() ([]byte, []int) {
-	return fileDescriptor_d938547f84707355, []int{16}
+	return fileDescriptor_d938547f84707355, []int{15}
 }
 func (m *Chunk) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1524,7 +1468,7 @@ func (m *ChunkedSeries) Reset()         { *m = ChunkedSeries{} }
 func (m *ChunkedSeries) String() string { return proto.CompactTextString(m) }
 func (*ChunkedSeries) ProtoMessage()    {}
 func (*ChunkedSeries) Descriptor() ([]byte, []int) {
-	return fileDescriptor_d938547f84707355, []int{17}
+	return fileDescriptor_d938547f84707355, []int{16}
 }
 func (m *ChunkedSeries) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -1583,7 +1527,6 @@ func init() {
 	proto.RegisterType((*TimeSeries)(nil), "prometheus.TimeSeries")
 	proto.RegisterType((*ReducedTimeSeries)(nil), "prometheus.ReducedTimeSeries")
 	proto.RegisterType((*MinimizedTimeSeries)(nil), "prometheus.MinimizedTimeSeries")
-	proto.RegisterType((*MinimizedLabelSymbol)(nil), "prometheus.MinimizedLabelSymbol")
 	proto.RegisterType((*LabelRef)(nil), "prometheus.LabelRef")
 	proto.RegisterType((*Label)(nil), "prometheus.Label")
 	proto.RegisterType((*Labels)(nil), "prometheus.Labels")
@@ -1596,88 +1539,88 @@ func init() {
 func init() { proto.RegisterFile("types.proto", fileDescriptor_d938547f84707355) }
 
 var fileDescriptor_d938547f84707355 = []byte{
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+	0xd5, 0x7e, 0x79, 0xb1, 0xab, 0xfd, 0xfe, 0x62, 0x57, 0xfb, 0xc6, 0x54, 0xda, 0xd1, 0xd9, 0x99,
+	0x89, 0x7f, 0x32, 0x9f, 0xfc, 0x15, 0x00, 0x00, 0xff, 0xff, 0xd7, 0x35, 0x2e, 0x7a, 0xfa, 0x0c,
+	0x00, 0x00,
 }
 
 func (m *MetricMetadata) Marshal() (dAtA []byte, err error) {
@@ -2416,43 +2359,6 @@ func (m *MinimizedTimeSeries) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	return len(dAtA) - i, nil
 }
 
-func (m *MinimizedLabelSymbol) Marshal() (dAtA []byte, err error) {
-	size := m.Size()
-	dAtA = make([]byte, size)
-	n, err := m.MarshalToSizedBuffer(dAtA[:size])
-	if err != nil {
-		return nil, err
-	}
-	return dAtA[:n], nil
-}
-
-func (m *MinimizedLabelSymbol) MarshalTo(dAtA []byte) (int, error) {
-	size := m.Size()
-	return m.MarshalToSizedBuffer(dAtA[:size])
-}
-
-func (m *MinimizedLabelSymbol) MarshalToSizedBuffer(dAtA []byte) (int, error) {
-	i := len(dAtA)
-	_ = i
-	var l int
-	_ = l
-	if m.XXX_unrecognized != nil {
-		i -= len(m.XXX_unrecognized)
-		copy(dAtA[i:], m.XXX_unrecognized)
-	}
-	if m.Length != 0 {
-		i = encodeVarintTypes(dAtA, i, uint64(m.Length))
-		i--
-		dAtA[i] = 0x10
-	}
-	if m.Offset != 0 {
-		i = encodeVarintTypes(dAtA, i, uint64(m.Offset))
-		i--
-		dAtA[i] = 0x8
-	}
-	return len(dAtA) - i, nil
-}
-
 func (m *LabelRef) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
@@ -3146,24 +3052,6 @@ func (m *MinimizedTimeSeries) Size() (n int) {
 	return n
 }
 
-func (m *MinimizedLabelSymbol) Size() (n int) {
-	if m == nil {
-		return 0
-	}
-	var l int
-	_ = l
-	if m.Offset != 0 {
-		n += 1 + sovTypes(uint64(m.Offset))
-	}
-	if m.Length != 0 {
-		n += 1 + sovTypes(uint64(m.Length))
-	}
-	if m.XXX_unrecognized != nil {
-		n += len(m.XXX_unrecognized)
-	}
-	return n
-}
-
 func (m *LabelRef) Size() (n int) {
 	if m == nil {
 		return 0
@@ -5149,95 +5037,6 @@ func (m *MinimizedTimeSeries) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
-func (m *MinimizedLabelSymbol) Unmarshal(dAtA []byte) error {
-	l := len(dAtA)
-	iNdEx := 0
-	for iNdEx < l {
-		preIndex := iNdEx
-		var wire uint64
-		for shift := uint(0); ; shift += 7 {
-			if shift >= 64 {
-				return ErrIntOverflowTypes
-			}
-			if iNdEx >= l {
-				return io.ErrUnexpectedEOF
-			}
-			b := dAtA[iNdEx]
-			iNdEx++
-			wire |= uint64(b&0x7F) << shift
-			if b < 0x80 {
-				break
-			}
-		}
-		fieldNum := int32(wire >> 3)
-		wireType := int(wire & 0x7)
-		if wireType == 4 {
-			return fmt.Errorf("proto: MinimizedLabelSymbol: wiretype end group for non-group")
-		}
-		if fieldNum <= 0 {
-			return fmt.Errorf("proto: MinimizedLabelSymbol: illegal tag %d (wire type %d)", fieldNum, wire)
-		}
-		switch fieldNum {
-		case 1:
-			if wireType != 0 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Offset", wireType)
-			}
-			m.Offset = 0
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowTypes
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				m.Offset |= uint32(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-		case 2:
-			if wireType != 0 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Length", wireType)
-			}
-			m.Length = 0
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowTypes
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				m.Length |= uint32(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-		default:
-			iNdEx = preIndex
-			skippy, err := skipTypes(dAtA[iNdEx:])
-			if err != nil {
-				return err
-			}
-			if (skippy < 0) || (iNdEx+skippy) < 0 {
-				return ErrInvalidLengthTypes
-			}
-			if (iNdEx + skippy) > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
-			iNdEx += skippy
-		}
-	}
-
-	if iNdEx > l {
-		return io.ErrUnexpectedEOF
-	}
-	return nil
-}
 func (m *LabelRef) Unmarshal(dAtA []byte) error {
 	l := len(dAtA)
 	iNdEx := 0
diff --git a/prompb/types.proto b/prompb/types.proto
index e96a9f120..3d857cda4 100644
--- a/prompb/types.proto
+++ b/prompb/types.proto
@@ -180,12 +180,6 @@ message MinimizedTimeSeries {
   repeated Histogram histograms = 4 [(gogoproto.nullable) = false];
 }
 
-// can be used for label name or label value
-message MinimizedLabelSymbol {
-  uint32 offset = 1;
-  uint32 length = 2;
-}
-
 message LabelRef {
   uint64 name_ref = 1;
   uint64 value_ref = 2;