Revert "Revert of [regexp] Remove remainder of native RegExpExecStub (patchset...

Revert "Revert of [regexp] Remove remainder of native RegExpExecStub (patchset #8 id:140001 of https://codereview.chromium.org/2752143003/ )"

This reverts commit da118ddf.

Erroneous double revert.

TBR=jgruber@chromium.org
NOTRY=true
NOPRESUBMIT=true
NOTREECHECKS=true

Change-Id: Iecabbb9b046e9c66cb86f9e9c5c6e0de6eab1c58
Reviewed-on: https://chromium-review.googlesource.com/484382Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44773}

src/code-factory.cc

@@ -237,12 +237,6 @@ Callable CodeFactory::RegExpExec(Isolate* isolate) {
   return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());
 }
 
-// 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());