Move AngularIntegrationTests

They all say they belong to Web but their implementations are in Core/Infrastructure/Backoffice, so I assume they belong in the new test suite

src/Umbraco.Tests.UnitTests/Umbraco.Web.Common/AngularIntegration/ServerVariablesParserTests.cs

@@ -8,8 +8,6 @@ namespace Umbraco.Tests.Web.AngularIntegration
     [TestFixture]
     public class ServerVariablesParserTests
     {
-
-
         [Test]
         public void Parse()
         {

src/Umbraco.Tests/Umbraco.Tests.csproj

@@ -203,9 +203,6 @@
     <Compile Include="TestHelpers\TestObjects.cs" />
     <Compile Include="UmbracoExamine\RandomIdRamDirectory.cs" />
     <Compile Include="Web\AngularIntegration\AngularAntiForgeryTests.cs" />
-    <Compile Include="Web\AngularIntegration\ContentModelSerializationTests.cs" />
-    <Compile Include="Web\AngularIntegration\JsInitializationTests.cs" />
-    <Compile Include="Web\AngularIntegration\ServerVariablesParserTests.cs" />
     <Compile Include="Migrations\Stubs\DropForeignKeyMigrationStub.cs" />
     <Compile Include="Cache\DeepCloneAppCacheTests.cs" />
     <Compile Include="Cache\DefaultCachePolicyTests.cs" />