5261 libm should stop using synonyms.h
5298 fabs is 0-sized, confuses dis(1) and others
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Approved by: Gordon Ross <gwr@nexenta.com>

@@ -53,15 +53,12 @@
 / -x ** y (an integer) is (-1)**(y) * (+x)**(y)
 / x ** y (x negative & y not integer) is NaN (i flag)
 
 #include "libm.h"
 LIBM_ANSI_PRAGMA_WEAK(powl,function)
-#include "libm_synonyms.h"
 #include "xpg6.h"
 
-#undef fabs
-
         .data
         .align  16
 negzero:
         .float  -0.0
 half: