Removed duplicate migration

database/migrations/2019_02_16_144154_auto_increment_back_to_string.php

@@ -1,30 +0,0 @@
-<?php
-
-use Illuminate\Support\Facades\Schema;
-use Illuminate\Database\Schema\Blueprint;
-use Illuminate\Database\Migrations\Migration;
-
-class AutoIncrementBackToString extends Migration
-{
-    /**
-     * Run the migrations.
-     *
-     * @return void
-     */
-    public function up()
-    {
-        Schema::table('settings', function (Blueprint $table) {
-            $table->string('auto_increment_prefix')->nullable()->default(null)->change();
-        });
-    }
-
-    /**
-     * Reverse the migrations.
-     *
-     * @return void
-     */
-    public function down()
-    {
-        //
-    }
-}