Reapply Daniel Bates's build fix from r105847 after the exact same issue was reintrod...

Reapply Daniel Bates's build fix from r105847 after the exact same issue was reintroduced in r105930.

Attempt to fix Mac build after changeset <http://trac.webkit.org/changeset/105930>.
(https://bugs.webkit.org/show_bug.cgi?id=75049)

Don't include NotImplemented.h in KURL.h since NotImplemented.h includes Logging.h, which defines
LOG_CHANNEL_PREFIX to be "Log". And this conflicts with the inclusion of WebKitLogging.h in
WebHTMLView.mm (which would have defined LOG_CHANNEL_PREFIX to be "WebKitLog").

* platform/KURL.h:
(WebCore::KURL::innerURL):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@105950 268f45cc-cd09-0410-ab3c-d52691b4dbfc