remove legacy mono android trace debugging files (#21968)

Author: emmauss

samples/ControlCatalog.Android/ControlCatalog.Android.csproj

@@ -14,16 +14,6 @@
     </AndroidResource>
   </ItemGroup>
 
-  <PropertyGroup Condition="'$(AndroidEnableProfiler)'=='True'">
-    <IsEmulator Condition="'$(IsEmulator)' == ''">True</IsEmulator>
-    <DebugSymbols>True</DebugSymbols>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <AndroidEnvironment Condition="'$(IsEmulator)'=='True'" Include="environment.emulator.txt" />
-    <AndroidEnvironment Condition="'$(IsEmulator)'!='True'" Include="environment.device.txt" />
-  </ItemGroup>
-
   <ItemGroup>
     <PackageReference Include="Xamarin.AndroidX.Core.SplashScreen" />
   </ItemGroup>