housekeeping: Remove Requirements for the Latest SDK (#3580)

By removing the latest SDK we will automatically fall back to our target framework 19041 this will ensure that we dont use components that are not compatible with older versions of windows 10 whilst enabling the end user a simple means of using the library with the SDK automatically being by the IDE selecting the correct SDK based upon the end users Target choices

src/ReactiveUI.Maui/ReactiveUI.Maui.csproj

@@ -12,10 +12,6 @@
 	<PropertyGroup Condition="$(TargetFramework.EndsWith('-windows10.0.19041.0'))">
 		<DefineConstants>$(DefineConstants);WINUI_TARGET;</DefineConstants>
 	</PropertyGroup>
-
-  <ItemGroup Condition="$(TargetFramework.EndsWith('-windows10.0.19041.0'))">
-    <PackageReference Include="Microsoft.WindowsAppSDK" Version="1.3.230602002" />
-  </ItemGroup>
 
 	<ItemGroup>
 		<ProjectReference Include="..\ReactiveUI\ReactiveUI.csproj" />