V15/task/cleanup obsolete (#17433)

* Replace obsolete UserGroup Alias consts to key equivalent in tests

* Update use of usergroup alias consts to key equivalent in IsSystemgroup extension method

* Obsolete (internally) unused helper function which purpose doesn't even seem true

* Prepped EmbedProviders for proper removal of non async methods and unneeded proxy methods

* Remove obsoleted UmbracoPath and updated internal references

* Corrected  mistake and updated unittets

* Update usergroup tests that use aliases for "system" groups

* Replace more uses of globalsettings.UmbracoPath

* Remove GetDateType by key non async

* Cleanup some usages of hostingEnvironment.MapPathContentRoot

* More easy obsoletion cleanup

* Small Typeload cleanup

* More obsolete removal

* Deploy obsoletion cleanup

* Remove obsolete methods from OEmbedProviderBase.cs

---------

Co-authored-by: Zeegaan <skrivdetud@gmail.com>

tests/Umbraco.Tests.Common/TestHelperBase.cs

@@ -197,12 +197,7 @@ public abstract class TestHelperBase
     public TypeLoader GetMockedTypeLoader() =>
         new(
             Mock.Of<ITypeFinder>(),
-            new VaryingRuntimeHash(),
-            Mock.Of<IAppPolicyCache>(),
-            new DirectoryInfo(GetHostingEnvironment()
-                .MapPathContentRoot(Constants.SystemDirectories.TempData)),
-            Mock.Of<ILogger<TypeLoader>>(),
-            Mock.Of<IProfiler>());
+            Mock.Of<ILogger<TypeLoader>>());
 
     /// <summary>
     ///     Some test files are copied to the /bin (/bin/debug) on build, this is a utility to return their physical path based