Cleanup.

Author: jpobst

src/Xamarin.Android.Build.Tasks/Utilities/AssemblyCompression.cs

@@ -75,7 +75,6 @@ static CompressionResult Compress (AssemblyData data, string outputFilePath)
 			// }
 
 			data.DestinationPath = outputFilePath;
-				//Path.Combine (outputDirectory, $"{Path.GetFileName (data.SourcePath)}.lz4");
 			data.SourceSize = checked((uint)fi.Length);
 
 			int bytesRead;

src/Xamarin.Android.Build.Tasks/Utilities/MonoAndroidHelper.cs

@@ -830,22 +830,5 @@ public static AndroidRuntime ParseAndroidRuntime (string androidRuntime)
 			// Default runtime is MonoVM
 			return AndroidRuntime.MonoVM;
 		}
-
-		/// <summary>
-		/// Returns true if the input file is newer than the output file.
-		/// </summary>
-		public static bool IsFileOutOfDate (string input, string output)
-		{
-			if (!File.Exists (output))
-				return true;
-
-			var inputInfo = new FileInfo (input);
-			var outputInfo = new FileInfo (output);
-
-			if (inputInfo.LastWriteTimeUtc > outputInfo.LastWriteTimeUtc)
-				return true;
-
-			return false;
-		}
 	}
 }

src/Xamarin.Android.Build.Tasks/Xamarin.Android.Common.targets

@@ -2105,7 +2105,7 @@ because xbuild doesn't support framework reference assemblies.
 </Target>
 
 <!--
-  LZ4 Compress all compressable assemblies. Note this is an incremental MSBuild target.
+  LZ4 compress all compressable assemblies. Note this is an incremental MSBuild target.
   @(AssembliesToCmpress) will only contain assemblies that have changed since the last build.
 -->
 <Target Name="_CompressAssemblies"