Remove hack from mono_free_method. Bypassing cleanup here was causing...

Remove hack from mono_free_method. Bypassing cleanup here was causing corruption to persist in mscorlib's method hashtable when a rehash occurred.  Unity profiler may need changes to avoid possessing dangling pointers. Same with the mono profiler (as the comment indicates)

mono/metadata/loader.c

@@ -1976,10 +1976,6 @@ mono_free_method  (MonoMethod *method)
 {
 	MONO_PROFILER_RAISE (method_free, (method));
 	
-	/* FIXME: This hack will go away when the profiler will support freeing methods */
-	if (G_UNLIKELY (mono_profiler_installed ()))
-		return;
-	
 	if (method->signature) {
 		/* 
 		 * FIXME: This causes crashes because the types inside signatures and