Major prune of unnecessary WebFileDatabase code.  In the end, what
        useful code that remains in WebFileDatabase will likely be moved directly
        into WebIconDatabase

        * Misc/WebFileDatabase.h:
        * Misc/WebFileDatabase.m:
        (-[WebFileDatabase initWithPath:]):
        (-[WebFileDatabase objectForKey:]):
        (-[WebFileDatabase open]):
        (-[WebFileDatabase close]):
        * Misc/WebIconDatabase.m:
        (-[WebIconDatabase _createFileDatabase]):
        (-[WebIconDatabase _loadIconDictionaries]):
        * Misc/WebLRUFileList.h: Removed.
        * Misc/WebLRUFileList.m: Removed.
        * WebKit.xcodeproj/project.pbxproj:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@16070 268f45cc-cd09-0410-ab3c-d52691b4dbfc