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 071d0fb2e6503659179aa1e84fa52d78d1c7da0b..519fdea6785dc8cff0b84dfb38272089fd3a11aa 100644
--- a/src/wasm/wasm-module.h
+++ b/src/wasm/wasm-module.h
@@ -430,12 +430,6 @@
 Handle<JSArrayBuffer> NewArrayBuffer(Isolate* isolate, size_t size,
                                      bool enable_guard_regions);
 
-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);