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 asin = __asin
+#pragma weak __asin = asin
 
 /* INDENT OFF */
 /*
  * asin(x)
  * Method :

@@ -60,11 +60,10 @@
  *      if |x|>1, return NaN with invalid signal.
  *
  */
 /* INDENT ON */
 
-#include "libm_synonyms.h"      /* __asin, __sqrt, __isnan */
 #include "libm_protos.h"        /* _SVID_libm_error */
 #include "libm_macros.h"
 #include <math.h>
 
 /* INDENT OFF */