message: Remove function FreeAndMaybeCoalesce,the function is not realized in bfc_allocator.cc
diff: @@ -405,10 +405,6 @@ class BFCAllocator : public Allocator {
  // contiguous in their allocation.
  void Merge(ChunkHandle h, ChunkHandle h2) EXCLUSIVE_LOCKS_REQUIRED(lock_);
  - // Frees the memory represented by 'h', coalescing the chunk if
  - // possible.
  - void FreeAndMaybeCoalesce(ChunkHandle h) EXCLUSIVE_LOCKS_REQUIRED(lock_);
  -
  // Adds the chunk 'h' to the proper free bin.
  void InsertFreeChunkIntoBin(ChunkHandle h) EXCLUSIVE_LOCKS_REQUIRED(lock_);
  