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

@@ -69,11 +67,10 @@
  * high (tpi_h) and low (tpi_l) parts and call __k_sin/cos(tip_h, tip_lo)
  * instead.
  */
 
 #include "libm.h"
-#include "libm_synonyms.h"
 #include "longdouble.h"
 
 #include <sys/isa_defs.h>
 
 #define I(q, m) ((int *) &(q))[m]