--- xnu/xnu-4570.71.2/libkern/c++/OSObject.cpp
+++ xnu/xnu-3248.30.4/libkern/c++/OSObject.cpp
@@ -216,18 +216,6 @@
     taggedRetain(0);
 }
 
-extern "C" void
-osobject_retain(void * object)
-{
-    ((OSObject *)object)->retain();
-}
-
-extern "C" void
-osobject_release(void * object)
-{
-    ((OSObject *)object)->release();
-}
-
 void OSObject::release(int when) const
 {
     taggedRelease(0, when);