Remove a diff helper function under that assumption that there are no entries without urls in WC-NG.
Remove a diff helper function under that assumption that there are no entries
without urls in WC-NG.

* subversion/libsvn_client/diff.c
  (convert_to_url): Remove function.
  (diff_prepare_repos_repos,
   diff_repos_wc): Call svn_wc__node_get_url directly in local path case.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1442538 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion