5261 libm should stop using synonyms.h

*** 26,36 ****
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #include <sys/isa_defs.h>
- #include "libm_synonyms.h"
  #include "libm_inlines.h"
  
  #ifdef _LITTLE_ENDIAN
  #define HI(x)   *(1+(int*)x)
  #define LO(x)   *(unsigned*)x
--- 26,35 ----
*** 81,92 ****
   *      polynomial is 2**(-56.26).
   *      Maximum error observed: less than 0.563 ulp after 1.500.000.000
   *      results.
   */
  
- #define sqrt __sqrt
- 
  extern double sqrt (double);
  extern const double __vlibm_TBL_rsqrt[];
  
  static void
  __vrsqrt_n(int n, double * restrict px, int stridex, double * restrict py, int stridey);
--- 80,89 ----
*** 410,415 ****
  
                  *py = res0;
                  py += stridey;
          }
  }
- 
--- 407,411 ----