5261 libm should stop using synonyms.h

@@ -28,11 +28,10 @@
 
         .file   "lrintf.s"
 
 #include "libm.h"
 LIBM_ANSI_PRAGMA_WEAK(lrintf,function)
-#include "libm_synonyms.h"
 
         ENTRY(lrintf)
         movl    %esp,%ecx
         subl    $8,%esp
         flds    4(%ecx)                 / load x