gcc.h: removed all duplicate macros

src/gcc.h

@@ -26,44 +26,28 @@
  */
 
 #if defined(__GNUC__) && (__GNUC__ >= 3)
-#  define mpd_const		__attribute__ ((const))
-#  define mpd_deprecated	__attribute__ ((deprecated))
-#  define mpd_malloc		__attribute__ ((malloc))
 #  define mpd_must_check	__attribute__ ((warn_unused_result))
-#  define mpd_noreturn		__attribute__ ((noreturn))
 #  define mpd_packed		__attribute__ ((packed))
 /* these are very useful for type checking */
 #  define mpd_printf		__attribute__ ((format(printf,1,2)))
 #  define mpd_fprintf		__attribute__ ((format(printf,2,3)))
 #  define mpd_fprintf_		__attribute__ ((format(printf,3,4)))
 #  define mpd_fprintf__		__attribute__ ((format(printf,4,5)))
-#  define mpd_pure		__attribute__ ((pure))
 #  define mpd_scanf		__attribute__ ((format(scanf,1,2)))
-#  define mpd_unused		__attribute__ ((unused))
 #  define mpd_used		__attribute__ ((used))
 /* #  define inline	inline __attribute__ ((always_inline)) */
 #  define mpd_noinline		__attribute__ ((noinline))
-#  define mpd_likely(x)		__builtin_expect (!!(x), 1)
-#  define mpd_unlikely(x)	__builtin_expect (!!(x), 0)
 #else
-#  define mpd_const
-#  define mpd_deprecated
-#  define mpd_malloc
 #  define mpd_must_check
-#  define mpd_noreturn
 #  define mpd_packed
 #  define mpd_printf
 #  define mpd_fprintf
 #  define mpd_fprintf_
 #  define mpd_fprintf__
-#  define mpd_pure
 #  define mpd_scanf
-#  define mpd_unused
 #  define mpd_used
 /* #  define inline */
 #  define mpd_noinline
-#  define mpd_likely(x)		(x)
-#  define mpd_unlikely(x)	(x)
 #endif
 
 #endif /* MPD_GCC_H */