Revert of [wasm] Embedder can control what buffers wasm compilation works on.

src/api.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #ifdef V8_USE_ADDRESS_SANITIZER
 #include <sanitizer/asan_interface.h>
 #endif  // V8_USE_ADDRESS_SANITIZER
@@ skipping 8689 matching lines @@
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
   isolate->set_oom_behavior(that);
 }
 
 void Isolate::SetAllowCodeGenerationFromStringsCallback(
     AllowCodeGenerationFromStringsCallback callback) {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
   isolate->set_allow_code_gen_callback(callback);
 }
 
-void Isolate::SetAllowWasmCompileCallback(AllowWasmCompileCallback callback) {
-  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
-  isolate->set_allow_wasm_compile_callback(callback);
-}
-
-void Isolate::SetAllowWasmInstantiateCallback(
-    AllowWasmInstantiateCallback callback) {
-  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
-  isolate->set_allow_wasm_instantiate_callback(callback);
-}
 
 bool Isolate::IsDead() {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this);
   return isolate->IsDead();
 }
 
 bool Isolate::AddMessageListener(MessageCallback that, Local<Value> data) {
   return AddMessageListenerWithErrorLevel(that, kMessageError, data);
 }
 
@@ skipping 1554 matching lines @@
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 }  // namespace internal
 }  // namespace v8