Remove Windows code that does not work

external/buildscripts/build.pl

@@ -1666,10 +1666,6 @@ if ($artifact)
 			system("cp", "$monoprefix/bin/mono-2.0.dll", "$distDirArchBin/mono-2.0.dll") eq 0 or die ("failed copying mono-2.0.dll\n");
 			system("cp", "$monoprefix/bin/mono-2.0.pdb", "$distDirArchBin/mono-2.0.pdb") eq 0 or die ("failed copying mono-2.0.pdb\n");
 			system("cp", "$monoprefix/bin/mono.exe", "$distDirArchBin/mono.exe") eq 0 or die ("failed copying mono.exe\n");
-			if($ENV{MONODIS})
-			{
-				system("cp", "$monoprefix/bin/monodis.exe", "$distDirArchBin/monodis.exe") eq 0 or die ("failed copying monodis.exe\n");
-			}
 		}
 	}