@@ -185,28 +185,11 @@
 	return (id)[[OFMutableUTF8String alloc]
 	    initWithContentsOfIRI: IRI
 			 encoding: encoding];
 }
 
-- (instancetype)retain
-{
-	return self;
-}
-
-- (instancetype)autorelease
-{
-	return self;
-}
-
-- (void)release
-{
-}
-
-- (void)dealloc
-{
-	OF_DEALLOC_UNSUPPORTED
-}
+OF_SINGLETON_METHODS
 @end
 
 @implementation OFMutableString
 + (void)initialize
 {