Facilitate wc-ng migration work by removing an unnecessary request for pristine mergeinfo properties when merging.
Facilitate wc-ng migration work by removing an unnecessary request for
pristine mergeinfo properties when merging.

* subversion/libsvn_client/mergeinfo.c
  (svn_client__get_wc_or_repos_mergeinfo): Don't ask for pristine mergeinfo
  to handle the case where an uncommitted merge has removed a path's
  mergeinfo, we can accomplish the same thing with svn_wc_get_prop_diffs2().


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@878764 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion