[regexp] Remove unused code

src/runtime/runtime.h

 // 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.
 
 #ifndef V8_RUNTIME_RUNTIME_H_
 #define V8_RUNTIME_RUNTIME_H_
 
 #include <memory>
 
 #include "src/allocation.h"
@@ skipping 440 matching lines @@
 #define FOR_EACH_INTRINSIC_PROXY(F)     \
   F(IsJSProxy, 1, 1)                    \
   F(JSProxyCall, -1 /* >= 2 */, 1)      \
   F(JSProxyConstruct, -1 /* >= 3 */, 1) \
   F(JSProxyGetTarget, 1, 1)             \
   F(JSProxyGetHandler, 1, 1)            \
   F(JSProxyRevoke, 1, 1)
 
 #define FOR_EACH_INTRINSIC_REGEXP(F)                \
   F(IsRegExp, 1, 1)                                 \
-  F(RegExpConstructResult, 3, 1)                    \
   F(RegExpCreate, 1, 1)                             \
   F(RegExpExec, 4, 1)                               \
   F(RegExpExecMultiple, 4, 1)                       \
   F(RegExpExecReThrow, 4, 1)                        \
-  F(RegExpFlags, 1, 1)                              \
-  F(RegExpInitializeAndCompile, 3, 1)               \
   F(RegExpInternalReplace, 3, 1)                    \
   F(RegExpReplace, 3, 1)                            \
-  F(RegExpSource, 1, 1)                             \
   F(StringReplaceGlobalRegExpWithString, 4, 1)      \
   F(StringReplaceNonGlobalRegExpWithFunction, 3, 1) \
   F(StringSplit, 3, 1)
 
 #define FOR_EACH_INTRINSIC_SCOPES(F)    \
   F(ThrowConstAssignError, 0, 1)        \
   F(DeclareGlobals, 3, 1)               \
   F(DeclareGlobalsForInterpreter, 3, 1) \
   F(InitializeVarGlobal, 3, 1)          \
   F(DeclareEvalFunction, 2, 1)          \
@@ skipping 650 matching lines @@
 
 class DeclareGlobalsEvalFlag : public BitField<bool, 0, 1> {};
 class DeclareGlobalsNativeFlag : public BitField<bool, 1, 1> {};
 STATIC_ASSERT(LANGUAGE_END == 2);
 class DeclareGlobalsLanguageMode : public BitField<LanguageMode, 2, 1> {};
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_RUNTIME_RUNTIME_H_