Remove compatibility project from workloads (#30316)

Author: jsuarezruiz

src/Workload/Microsoft.Maui.Sdk/Sdk/BundledVersions.in.targets

@@ -6,13 +6,6 @@
     <MauiWorkloadTargetFrameworkVersion>@MAUI_DOTNET_VERSION@</MauiWorkloadTargetFrameworkVersion>
     <MauiVersion Condition=" '$(MauiVersion)' == '' ">$(MauiWorkloadVersion)</MauiVersion>
 
-    <!--
-      Indicates that the Microsoft.Maui.Controls.Compatibility package should be implicitly
-      referenced.  This will eventually switch to false by default and become opt, in,
-      however Visual Studio currently depends on this assembly being loaded for Live Visual Tree.
-    -->
-    <UseMauiCompat Condition=" '$(UseMauiCompat)' == '' and '$(UseMaui)' == 'true' ">false</UseMauiCompat>
-
     <!--
       If opted into NuGet Central Package Management, $(DisableMauiImplicitPackageReferences) defaults to true
       https://learn.microsoft.com/nuget/consume-packages/Central-Package-Management
@@ -38,7 +31,7 @@
 
     One thing to note: the old and unsupported $(UseMauiNuGets) property is the same as the new
     $(DisableMauiImplicitPackageReferences) property and is just kept for compatibility. It should
-    not be used any any project, but there are some existing projects that have used them.
+    not be used any project, but there are some existing projects that have used them.
   -->
   <ItemGroup Condition=" '$(DisableMauiImplicitPackageReferences)' != 'true' and '$(UseMauiNuGets)' != 'true' ">
     <_MauiImplicitPackageReference Include="Microsoft.Maui.Resizetizer" Version="$(MauiVersion)" PrivateAssets="all" Condition=" '$(UseMauiAssets)' == 'true' " />
@@ -51,9 +44,6 @@
     <_MauiImplicitPackageReference Include="Microsoft.Maui.Controls" Version="$(MauiVersion)" Condition=" '$(UseMaui)' == 'true' ">
       <PrivateAssets Condition=" '$(OutputType)' == 'Library' and '$(AndroidApplication)' != 'true'  and '$(IsAppExtension)' != 'true'">all</PrivateAssets>
     </_MauiImplicitPackageReference>
-    <_MauiImplicitPackageReference Include="Microsoft.Maui.Controls.Compatibility" Version="$(MauiVersion)" IsMauiImplicitOptionalPackageReference="true" Condition=" '$(UseMaui)' == 'true' and '$(UseMauiCompat)' == 'true' ">
-      <PrivateAssets Condition=" '$(OutputType)' == 'Library' and '$(AndroidApplication)' != 'true'  and '$(IsAppExtension)' != 'true'">all</PrivateAssets>
-    </_MauiImplicitPackageReference>
     <_MauiImplicitPackageReference Include="Microsoft.AspNetCore.Components.WebView.Maui" Version="$(MauiVersion)" Condition=" '$(UseMaui)' == 'true' and '$(UsingMicrosoftNETSdkRazor)' == 'true' ">
       <PrivateAssets Condition=" '$(OutputType)' == 'Library' and '$(AndroidApplication)' != 'true'  and '$(IsAppExtension)' != 'true'">all</PrivateAssets>
     </_MauiImplicitPackageReference>

src/Workload/Microsoft.NET.Sdk.Maui.Manifest/WorkloadManifest.in.json

@@ -38,7 +38,6 @@
           "Microsoft.Maui.Controls.Build.Tasks",
           "Microsoft.Maui.Controls.Core",
           "Microsoft.Maui.Controls.Xaml",
-          "Microsoft.Maui.Controls.Compatibility",
           "Microsoft.Maui.Essentials"
       ]
     },

src/Workload/README.md

@@ -19,7 +19,6 @@ The idea, is a project to be able to set `$(UseMaui)`:
 * `Microsoft.NET.Sdk.Maui` - workload manifest
 * `Microsoft.Maui.Sdk` - workload SDK
 * `Microsoft.Maui.Controls` - nuget
-* `Microsoft.Maui.Controls.Compatibility` - nuget
 * `Microsoft.Maui.Templates` - nuget
 
 `BlazorWebView` is an addition to MAUI, project can currently opt into