5261 libm should stop using synonyms.h

*** 26,36 ****
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #include "libm.h"
- #include "libm_synonyms.h"
  
  long double __poly_libmq(x,n,p)
  long double x,p[];
  int n;
  {
--- 26,35 ----