Don't redefine ast_mutex_init

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@2642 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/lock.h

@@ -172,7 +172,6 @@ static inline int ast_mutex_init(ast_mutex_t *t)
 	pthread_mutexattr_settype(&attr, AST_MUTEX_KIND);
 	return pthread_mutex_init(t, &attr);
 }
-#define ast_mutex_init(t) pthread_mutex_init(t, NULL)
 #define ast_pthread_mutex_init(t,a) pthread_mutex_init(t,a)
 #define ast_mutex_destroy(t) pthread_mutex_destroy(t)