5261 libm should stop using synonyms.h

@@ -28,11 +28,10 @@
 
         .file   "fabs.S"
 
 #include "libm.h"
 LIBM_ANSI_PRAGMA_WEAK(fabs,function)
-#include "libm_synonyms.h"
 
         ENTRY(fabs)
         sethi   %hi(0x80000000),%o2
         andn    %o0,%o2,%o0
         std     %o0,[%sp+0x48]