Revert of [regexp] Add stub for RegExpExec instead of inlining

src/code-factory.cc

 // Copyright 2014 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/code-factory.h"
 
 #include "src/bootstrapper.h"
 #include "src/ic/ic.h"
 
 namespace v8 {
@@ skipping 247 matching lines @@
 TFS_BUILTIN(StringEqual)
 TFS_BUILTIN(StringNotEqual)
 TFS_BUILTIN(StringLessThan)
 TFS_BUILTIN(StringLessThanOrEqual)
 TFS_BUILTIN(StringGreaterThan)
 TFS_BUILTIN(StringGreaterThanOrEqual)
 
 #undef TFS_BUILTIN
 
 // static
-Callable CodeFactory::RegExpExecInternal(Isolate* isolate, bool is_fastpath) {
-  Handle<Code> code(is_fastpath
-                        ? isolate->builtins()->RegExpExecInternalFast()
-                        : isolate->builtins()->RegExpExecInternalSlow());
-  return Callable(code, RegExpExecInternalDescriptor(isolate));
-}
-
-// static
 Callable CodeFactory::StringAdd(Isolate* isolate, StringAddFlags flags,
                                 PretenureFlag pretenure_flag) {
   StringAddStub stub(isolate, flags, pretenure_flag);
   return make_callable(stub);
 }
 
 // static
 Callable CodeFactory::StringCompare(Isolate* isolate, Token::Value token) {
   switch (token) {
     case Token::EQ:
@@ skipping 206 matching lines @@
 }
 
 // static
 Callable CodeFactory::FunctionPrototypeBind(Isolate* isolate) {
   return Callable(isolate->builtins()->FunctionPrototypeBind(),
                   BuiltinDescriptor(isolate));
 }
 
 }  // namespace internal
 }  // namespace v8