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)
         fldl    4(%esp)
 #undef  fabs
         fabs