5261 libm should stop using synonyms.h

@@ -25,15 +25,11 @@
 /*
  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#pragma weak aintf = __aintf
-#pragma weak anintf = __anintf
-#pragma weak irintf = __irintf
-#pragma weak nintf = __nintf
-#pragma weak rintf = __rintf
+#pragma weak __rintf = rintf
 
 /* INDENT OFF */
 /*
  * aintf(x)     return x chopped to integral value
  * anintf(x)    return sign(x)*(|x|+0.5) chopped to integral value