[wasm] Remove unused functions on the memory object

Change-Id: Id221faecc9873cb0dbbd89777e055884158dbfb3
Reviewed-on: https://chromium-review.googlesource.com/c/1364370Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58059}

src/wasm/wasm-objects.cc

@@ -985,11 +985,6 @@ Handle<WasmMemoryObject> WasmMemoryObject::New(
   return memory_obj;
 }
 
-uint32_t WasmMemoryObject::current_pages() {
-  return static_cast<uint32_t>(array_buffer()->byte_length() /
-                               wasm::kWasmPageSize);
-}
-
 bool WasmMemoryObject::has_full_guard_region(Isolate* isolate) {
   const wasm::WasmMemoryTracker::AllocationData* allocation =
       isolate->wasm_engine()->memory_tracker()->FindAllocationData(
@@ -1029,13 +1024,6 @@ void WasmMemoryObject::AddInstance(Isolate* isolate,
   SetInstanceMemory(instance, buffer);
 }
 
-void WasmMemoryObject::RemoveInstance(Handle<WasmMemoryObject> memory,
-                                      Handle<WasmInstanceObject> instance) {
-  if (memory->has_instances()) {
-    memory->instances()->RemoveOne(MaybeObjectHandle::Weak(instance));
-  }
-}
-
 // static
 int32_t WasmMemoryObject::Grow(Isolate* isolate,
                                Handle<WasmMemoryObject> memory_object,

src/wasm/wasm-objects.h

@@ -311,10 +311,6 @@ class WasmMemoryObject : public JSObject {
   // Add an instance to the internal (weak) list.
   static void AddInstance(Isolate* isolate, Handle<WasmMemoryObject> memory,
                           Handle<WasmInstanceObject> object);
-  // Remove an instance from the internal (weak) list.
-  static void RemoveInstance(Handle<WasmMemoryObject> memory,
-                             Handle<WasmInstanceObject> object);
-  uint32_t current_pages();
   inline bool has_maximum_pages();
 
   // Return whether the underlying backing store has guard regions large enough