5261 libm should stop using synonyms.h

@@ -25,11 +25,11 @@
 /*
  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#pragma weak tgammaf = __tgammaf
+#pragma weak __tgammaf = tgammaf
 
 /*
  * True gamma function
  *
  * float tgammaf(float x)

@@ -38,11 +38,10 @@
  *
  * Maximum error observed: 0.87ulp (both positive and negative arguments)
  */
 
 #include "libm.h"
-#include "libm_synonyms.h"
 #include <math.h>
 #if defined(__SUNPRO_C)
 #include <sunmath.h>
 #endif
 #include <sys/isa_defs.h>