[regexp] Remove remainder of native RegExpExecStub

src/regexp/s390/regexp-macro-assembler-s390.h

 // Copyright 2015 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.
 
 #ifndef V8_S390_REGEXP_MACRO_ASSEMBLER_S390_H_
 #define V8_S390_REGEXP_MACRO_ASSEMBLER_S390_H_
 
 #include "src/macro-assembler.h"
 #include "src/regexp/regexp-macro-assembler.h"
 #include "src/s390/assembler-s390.h"
@@ skipping 79 matching lines @@
 
   // Above the frame pointer - Stored registers and stack passed parameters.
   // Register 6-15(sp)
   static const int kStoredRegisters = kFramePointer;
   static const int kCallerFrame =
       kStoredRegisters + kCalleeRegisterSaveAreaSize;
   // Stack parameters placed by caller.
   static const int kCaptureArraySize = kCallerFrame;
   static const int kStackAreaBase = kCallerFrame + kPointerSize;
   // kDirectCall again
-  static const int kSecondaryReturnAddress = kStackAreaBase + 2 * kPointerSize;
-  static const int kIsolate = kSecondaryReturnAddress + kPointerSize;
+  static const int kIsolate = kStackAreaBase + 2 * kPointerSize;
 
   // Below the frame pointer.
   // Register parameters stored by setup code.
   static const int kDirectCall = kFramePointer - kPointerSize;
   static const int kStackHighEnd = kDirectCall - kPointerSize;
   static const int kNumOutputRegisters = kStackHighEnd - kPointerSize;
   static const int kRegisterOutput = kNumOutputRegisters - kPointerSize;
   static const int kInputEnd = kRegisterOutput - kPointerSize;
   static const int kInputStart = kInputEnd - kPointerSize;
   static const int kStartIndex = kInputStart - kPointerSize;
@@ skipping 94 matching lines @@
 
 // Set of non-volatile registers saved/restored by generated regexp code.
 const RegList kRegExpCalleeSaved =
     1 << 6 | 1 << 7 | 1 << 8 | 1 << 9 | 1 << 10 | 1 << 11 | 1 << 13;
 
 #endif  // V8_INTERPRETED_REGEXP
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_S390_REGEXP_MACRO_ASSEMBLER_S390_H_