Revert r10908 due to flakiness and crashes.

src/platform-posix.cc

Index: src/platform-posix.cc
diff --git a/src/platform-posix.cc b/src/platform-posix.cc
index 4543a66e8c595c6926ed7081f6fbf02b7258506f..34fd5c4498507f678ea83a2bd33b8eb6a53e318f 100644
--- a/src/platform-posix.cc
+++ b/src/platform-posix.cc
@@ -53,7 +53,6 @@
 
 #include "v8.h"
 
-#include "codegen.h"
 #include "platform.h"
 
 namespace v8 {
@@ -127,29 +126,6 @@ double modulo(double x, double y) {
 }
 
 
-static Mutex* transcendental_function_mutex = OS::CreateMutex();
-
-#define TRANSCENDENTAL_FUNCTION(name, type)                   \
-static TranscendentalFunction fast_##name##_function = NULL;  \
-double fast_##name(double x) {                                \
-  if (fast_##name##_function == NULL) {                       \
-    ScopedLock lock(transcendental_function_mutex);           \
-    TranscendentalFunction temp =                             \
-        CreateTranscendentalFunction(type);                   \
-    MemoryBarrier();                                          \
-    fast_##name##_function = temp;                            \
-  }                                                           \
-  return (*fast_##name##_function)(x);                        \
-}
-
-TRANSCENDENTAL_FUNCTION(sin, TranscendentalCache::SIN)
-TRANSCENDENTAL_FUNCTION(cos, TranscendentalCache::COS)
-TRANSCENDENTAL_FUNCTION(tan, TranscendentalCache::TAN)
-TRANSCENDENTAL_FUNCTION(log, TranscendentalCache::LOG)
-
-#undef TRANSCENDENTAL_FUNCTION
-
-
 double OS::nan_value() {
   // NAN from math.h is defined in C99 and not in POSIX.
   return NAN;