[regexp] Remove remainder of native RegExpExecStub

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/builtins/builtins-descriptors.h"
 #include "src/ic/ic.h"
 #include "src/objects-inl.h"
@@ skipping 214 matching lines @@
                   TypeConversionDescriptor(isolate));
 }
 
 // static
 Callable CodeFactory::NumberToString(Isolate* isolate) {
   NumberToStringStub stub(isolate);
   return make_callable(stub);
 }
 
 // static
-Callable CodeFactory::RegExpExec(Isolate* isolate) {
-  RegExpExecStub stub(isolate);
-  return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());
-}
-
-// static
 Callable CodeFactory::StringFromCharCode(Isolate* isolate) {
   Handle<Code> code(isolate->builtins()->StringFromCharCode());
   return Callable(code, BuiltinDescriptor(isolate));
 }
 
 #define TFS_BUILTIN(Name)                                                 \
   Callable CodeFactory::Name(Isolate* isolate) {                          \
     Handle<Code> code(isolate->builtins()->Name());                       \
     return Callable(code, Builtin_##Name##_InterfaceDescriptor(isolate)); \
   }
@@ skipping 302 matching lines @@
 }
 
 // static
 Callable CodeFactory::FunctionPrototypeBind(Isolate* isolate) {
   return Callable(isolate->builtins()->FunctionPrototypeBind(),
                   BuiltinDescriptor(isolate));
 }
 
 }  // namespace internal
 }  // namespace v8