5261 libm should stop using synonyms.h

@@ -28,11 +28,10 @@
 
         .file   "nexttowardl.s"
 
 #include "libm.h"
 LIBM_ANSI_PRAGMA_WEAK(nexttowardl,function)
-#include "libm_synonyms.h"
 
         .section .rodata
         .align  4
 .LFmaxl:        .long   0xffffffff,0xffffffff,0x00007ffe
 .LFminl:        .long   0x1,0x0,0x0