Remove unused trigonometric code.

src/heap-inl.h

 // 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 745 matching lines @@
 }
 
 
 Address TranscendentalCache::cache_array_address() {
   return reinterpret_cast<Address>(caches_);
 }
 
 
 double TranscendentalCache::SubCache::Calculate(double input) {
   switch (type_) {
-    case ACOS:
-      return acos(input);
-    case ASIN:
-      return asin(input);
-    case ATAN:
-      return atan(input);
-    case COS:
-      return fast_cos(input);
-    case EXP:
-      return exp(input);
     case LOG:
       return fast_log(input);
-    case SIN:
-      return fast_sin(input);
-    case TAN:
-      return fast_tan(input);
     default:
+      UNREACHABLE();
       return 0.0;  // Never happens.
   }
 }
 
 
 MaybeObject* TranscendentalCache::SubCache::Get(double input) {
   Converter c;
   c.dbl = input;
   int hash = Hash(c);
   Element e = elements_[hash];
@@ skipping 78 matching lines @@
 #ifdef DEBUG
   Isolate* isolate = Isolate::Current();
   isolate->heap()->disallow_allocation_failure_ = old_state_;
 #endif
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_INL_H_