5261 libm should stop using synonyms.h

@@ -25,16 +25,10 @@
 /*
  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#pragma weak isinfl = __isinfl
-#pragma weak isnormall = __isnormall
-#pragma weak issubnormall = __issubnormall
-#pragma weak iszerol = __iszerol
-#pragma weak signbitl = __signbitl
-
 #include "libm.h"
 
 #if defined(__sparc)
 int
 isinfl(long double x) {