5261 libm should stop using synonyms.h

@@ -24,13 +24,12 @@
 /*
  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#pragma weak cabs = __cabs
+#pragma weak __cabs = cabs
 
-#include "libm_synonyms.h"
 #include <math.h>
 #include "complex_wrapper.h"
 
 /*
  * If C were the only standard we cared about, cabs could just call