Use inline constants instead of typed array for math constants.

src/third_party/fdlibm/fdlibm.h

 // The following is adapted from fdlibm (http://www.netlib.org/fdlibm).
 //
 // ====================================================
 // Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
 //
 // Developed at SunSoft, a Sun Microsystems, Inc. business.
 // Permission to use, copy, modify, and distribute this
 // software is freely granted, provided that this notice
 // is preserved.
 // ====================================================
 //
 // The original source code covered by the above license above has been
 // modified significantly by Google Inc.
 // Copyright 2014 the V8 project authors. All rights reserved.
 
 #ifndef V8_FDLIBM_H_
 #define V8_FDLIBM_H_
 
 namespace v8 {
 namespace fdlibm {
 
 int rempio2(double x, double* y);
 
-// Constants to be exposed to builtins via Float64Array.
-struct MathConstants {
-  static const double constants[66];
-};
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FDLIBM_H_