Remove Navigation Transitions from Blink.

Source/core/editing/markup.h

 /*
  * Copyright (C) 2004 Apple Computer, Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 58 matching lines @@
     using PositionType = typename Strategy::PositionType;
 
     static String createMarkup(const PositionType& startPosition, const PositionType& endPosition, EAnnotateForInterchange shouldAnnotate = DoNotAnnotateForInterchange, bool convertBlocksToInlines = false, EAbsoluteURLs shouldResolveURLs = DoNotResolveURLs, Node* constrainingAncestor = nullptr);
 };
 
 extern template class CORE_EXTERN_TEMPLATE_EXPORT CreateMarkupAlgorithm<EditingStrategy>;
 
 CORE_EXPORT String createMarkup(const Range*, EAnnotateForInterchange = DoNotAnnotateForInterchange, bool convertBlocksToInlines = false, EAbsoluteURLs = DoNotResolveURLs, Node* constrainingAncestor = nullptr);
 CORE_EXPORT String createMarkup(const Node*, EChildrenOnly = IncludeNode, EAbsoluteURLs = DoNotResolveURLs);
 
-String createStyledMarkupForNavigationTransition(Node*);
-
 String urlToMarkup(const KURL&, const String& title);
 void mergeWithNextTextNode(Text*, ExceptionState&);
 
 bool propertyMissingOrEqualToNone(StylePropertySet*, CSSPropertyID);
 
 }
 
 #endif // markup_h