Remove unused trigonometric code.

src/x64/codegen-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 46 matching lines @@
 
 UnaryMathFunction CreateTranscendentalFunction(TranscendentalCache::Type type) {
   size_t actual_size;
   // Allocate buffer in executable space.
   byte* buffer = static_cast<byte*>(OS::Allocate(1 * KB,
                                                  &actual_size,
                                                  true));
   if (buffer == NULL) {
     // Fallback to library function if function cannot be created.
     switch (type) {
-      case TranscendentalCache::SIN: return &sin;
-      case TranscendentalCache::COS: return &cos;
-      case TranscendentalCache::TAN: return &tan;
       case TranscendentalCache::LOG: return &log;
       default: UNIMPLEMENTED();
     }
   }
 
   MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size));
   // xmm0: raw double input.
   // Move double input into registers.
   __ push(rbx);
   __ push(rdi);
@@ skipping 674 matching lines @@
     // argument_count_reg_ * times_pointer_size + (receiver - 1) * kPointerSize.
     return Operand(base_reg_, argument_count_reg_, times_pointer_size,
         displacement_to_last_argument + (receiver - 1 - index) * kPointerSize);
   }
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64