5261 libm should stop using synonyms.h

@@ -28,11 +28,10 @@
 
         .file   "copysignl.s"
 
 #include "libm.h"
 LIBM_ANSI_PRAGMA_WEAK(copysignl,function)
-#include "libm_synonyms.h"
 
         ENTRY(copysignl)
         movl    12(%esp),%eax           / sign and bexp of x
         movl    24(%esp),%ecx           / sign and bexp of y
         andl    $0x00007fff,%eax        / eax <-- bexp(x)