Clean up migration tests

src/Umbraco.Tests/Migrations/AlterMigrationTests.cs

@@ -1,15 +1,10 @@
 using System;
 using System.Diagnostics;
-using System.Data.Common;
 using System.Linq;
 using Moq;
-using NPoco;
 using NUnit.Framework;
-using Umbraco.Core;
 using Umbraco.Core.Logging;
 using Umbraco.Core.Migrations;
-using Umbraco.Core.Persistence;
-using Umbraco.Core.Persistence.SqlSyntax;
 using Umbraco.Tests.Migrations.Stubs;
 using Umbraco.Tests.Testing;
 
@@ -19,18 +14,11 @@ namespace Umbraco.Tests.Migrations
     public class AlterMigrationTests
     {
         private ILogger _logger;
-        private ISqlSyntaxProvider _sqlSyntax;
-        private IUmbracoDatabase _database;
 
         [SetUp]
         public void Setup()
         {
             _logger = Mock.Of<ILogger>();
-            _sqlSyntax = new SqlCeSyntaxProvider();
-
-            var dbProviderFactory = DbProviderFactories.GetFactory(Constants.DbProviderNames.SqlServer);
-            var sqlContext = new SqlContext(_sqlSyntax, DatabaseType.SqlServer2008, Mock.Of<IPocoDataFactory>());
-            _database = new UmbracoDatabase("cstr", sqlContext, dbProviderFactory, _logger);
         }
 
         [Test]

src/Umbraco.Tests/Migrations/MigrationTests.cs

@@ -2,13 +2,10 @@
 using System.Data;
 using Moq;
 using NUnit.Framework;
-using Semver;
 using Umbraco.Core.Events;
 using Umbraco.Core.Migrations;
-using Umbraco.Core.Migrations.Upgrade;
 using Umbraco.Core.Persistence;
 using Umbraco.Core.Scoping;
-using Umbraco.Core.Services;
 using ILogger = Umbraco.Core.Logging.ILogger;
 
 namespace Umbraco.Tests.Migrations