update:删除多余迁移

Api/Ewide.Database.Migrations/Migrations/20210427093101_removeAreaNumberParent.cs

@@ -1,25 +0,0 @@
-using Microsoft.EntityFrameworkCore.Migrations;
-
-namespace Ewide.Database.Migrations.Migrations
-{
-    public partial class removeAreaNumberParent : Migration
-    {
-        protected override void Up(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.DropColumn(
-                name: "ParentCode",
-                table: "ewide_area_number");
-        }
-
-        protected override void Down(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.AddColumn<string>(
-                name: "ParentCode",
-                table: "ewide_area_number",
-                type: "varchar(10) CHARACTER SET utf8mb4",
-                maxLength: 10,
-                nullable: true,
-                comment: "父级区域代码");
-        }
-    }
-}