Remove WTF::textAtom and WTF::commentAtom

Source/wtf/text/AtomicString.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 207 matching lines @@
 inline bool equalIgnoringCase(const AtomicString& a, const String& b) { return equalIgnoringCase(a.impl(), b.impl()); }
 inline bool equalIgnoringCase(const LChar* a, const AtomicString& b) { return equalIgnoringCase(a, b.impl()); }
 inline bool equalIgnoringCase(const char* a, const AtomicString& b) { return equalIgnoringCase(reinterpret_cast<const LChar*>(a), b.impl()); }
 inline bool equalIgnoringCase(const String& a, const AtomicString& b) { return equalIgnoringCase(a.impl(), b.impl()); }
 
 // Define external global variables for the commonly used atomic strings.
 // These are only usable from the main thread.
 #ifndef ATOMICSTRING_HIDE_GLOBALS
 WTF_EXPORT extern const AtomicString nullAtom;
 WTF_EXPORT extern const AtomicString emptyAtom;
-WTF_EXPORT extern const AtomicString textAtom;
-WTF_EXPORT extern const AtomicString commentAtom;
 WTF_EXPORT extern const AtomicString starAtom;
 WTF_EXPORT extern const AtomicString xmlAtom;
 WTF_EXPORT extern const AtomicString xmlnsAtom;
 WTF_EXPORT extern const AtomicString xlinkAtom;
 
 inline AtomicString AtomicString::fromUTF8(const char* characters, size_t length)
 {
     if (!characters)
         return nullAtom;
     if (!length)
@@ skipping 16 matching lines @@
 template<> struct DefaultHash<AtomicString> {
     typedef AtomicStringHash Hash;
 };
 
 } // namespace WTF
 
 #ifndef ATOMICSTRING_HIDE_GLOBALS
 using WTF::AtomicString;
 using WTF::nullAtom;
 using WTF::emptyAtom;
-using WTF::textAtom;
-using WTF::commentAtom;
 using WTF::starAtom;
 using WTF::xmlAtom;
 using WTF::xmlnsAtom;
 using WTF::xlinkAtom;
 #endif
 
 #include "wtf/text/StringConcatenate.h"
 #endif // AtomicString_h