[regexp] Remove remainder of native RegExpExecStub

src/arm64/interface-descriptors-arm64.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/arm64/interface-descriptors-arm64.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/interface-descriptors.h"
 
@@ skipping 39 matching lines @@
 const Register StringCompareDescriptor::RightRegister() { return x0; }
 
 const Register ApiGetterDescriptor::HolderRegister() { return x0; }
 const Register ApiGetterDescriptor::CallbackRegister() { return x3; }
 
 const Register MathPowTaggedDescriptor::exponent() { return x11; }
 
 
 const Register MathPowIntegerDescriptor::exponent() { return x12; }
 
-const Register RegExpExecDescriptor::StringRegister() { return x0; }
-const Register RegExpExecDescriptor::LastIndexRegister() { return x1; }
-const Register RegExpExecDescriptor::StringStartRegister() { return x2; }
-const Register RegExpExecDescriptor::StringEndRegister() { return x3; }
-const Register RegExpExecDescriptor::CodeRegister() { return x8; }
 
 const Register GrowArrayElementsDescriptor::ObjectRegister() { return x0; }
 const Register GrowArrayElementsDescriptor::KeyRegister() { return x3; }
 
 
 void FastNewClosureDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // x1: function info
   // x2: feedback vector
   // x3: slot
@@ skipping 337 matching lines @@
   Register registers[] = {
       x1,  // loaded new FP
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64