[heap] Remove unused CodeRange CommitRawMemory and UncommitRawMemory functions.

Change-Id: I14237a71c34872e114d7e2afb73a758e011fd731
Reviewed-on: https://chromium-review.googlesource.com/1051239Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53092}

src/heap/spaces.cc

@@ -227,18 +227,6 @@ Address CodeRange::AllocateRawMemory(const size_t requested_size,
   return current.start;
 }
 
-
-bool CodeRange::CommitRawMemory(Address start, size_t length) {
-  return isolate_->heap()->memory_allocator()->CommitMemory(start, length);
-}
-
-
-bool CodeRange::UncommitRawMemory(Address start, size_t length) {
-  return virtual_memory_.SetPermissions(start, length,
-                                        PageAllocator::kNoAccess);
-}
-
-
 void CodeRange::FreeRawMemory(Address address, size_t length) {
   DCHECK(IsAddressAligned(address, MemoryChunk::kAlignment));
   base::LockGuard<base::Mutex> guard(&code_range_mutex_);

src/heap/spaces.h

@@ -1055,8 +1055,6 @@ class CodeRange {
   V8_WARN_UNUSED_RESULT Address AllocateRawMemory(const size_t requested_size,
                                                   const size_t commit_size,
                                                   size_t* allocated);
-  bool CommitRawMemory(Address start, size_t length);
-  bool UncommitRawMemory(Address start, size_t length);
   void FreeRawMemory(Address buf, size_t length);
 
  private: