Revert of [wasm] WebAssembly.Memory object can be referenced by multiple Instance objects.

src/wasm/wasm-module.h

Index: src/wasm/wasm-module.h
diff --git a/src/wasm/wasm-module.h b/src/wasm/wasm-module.h
index 1bea6c806f1aa8bdbf6b84badf9096d7cc09d1c0..2dded1e1c411bd05d0d6a4a37d4341cb2f0ced5f 100644
--- a/src/wasm/wasm-module.h
+++ b/src/wasm/wasm-module.h
@@ -422,8 +422,8 @@
 // Returns nullptr on failing to get owning instance.
 WasmInstanceObject* GetOwningWasmInstance(Code* code);
 
-MaybeHandle<JSArrayBuffer> GetInstanceMemory(Isolate* isolate,
-                                             Handle<JSObject> instance);
+MaybeHandle<JSArrayBuffer> GetInstanceMemory(
+    Isolate* isolate, Handle<WasmInstanceObject> instance);
 
 int32_t GetInstanceMemorySize(Isolate* isolate,
                               Handle<WasmInstanceObject> instance);
@@ -433,14 +433,6 @@
 
 Handle<JSArrayBuffer> NewArrayBuffer(Isolate* isolate, size_t size,
                                      bool enable_guard_regions);
-
-int32_t GetInstanceMemorySize(Isolate* isolate, Handle<JSObject> instance);
-
-int32_t GrowWebAssemblyMemory(Isolate* isolate, Handle<Object> receiver,
-                              uint32_t pages);
-
-int32_t GrowMemory(Isolate* isolate, Handle<WasmInstanceObject> instance,
-                   uint32_t pages);
 
 void UpdateDispatchTables(Isolate* isolate, Handle<FixedArray> dispatch_tables,
                           int index, Handle<JSFunction> js_function);