Removed dead ceiling function.

src/platform-win32.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 115 matching lines @@
 #endif  // __MINGW32__
 
 namespace v8 {
 namespace internal {
 
 intptr_t OS::MaxVirtualMemory() {
   return 0;
 }
 
 
-double ceiling(double x) {
-  return ceil(x);
-}
-
-
 #if V8_TARGET_ARCH_IA32
 static void MemMoveWrapper(void* dest, const void* src, size_t size) {
   memmove(dest, src, size);
 }
 
 
 // Initialize to library version so we can call this at any time during startup.
 static OS::MemMoveFunction memmove_function = &MemMoveWrapper;
 
 // Defined in codegen-ia32.cc.
@@ skipping 1367 matching lines @@
   ASSERT(result);
 }
 
 
 
 void Thread::YieldCPU() {
   Sleep(0);
 }
 
 } }  // namespace v8::internal