5261 libm should stop using synonyms.h

@@ -25,12 +25,10 @@
 /*
  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#pragma weak sincospil = __sincospil
-
 /*
  * void sincospil(long double x, long double *s, long double *c)
  * *s = sinl(pi*x); *c = cosl(pi*x);
  *
  * Algorithm, 10/17/2002, K.C. Ng