Fix part of issue 1635.  Control client memory use when deleting lots of targets.
Fix part of issue 1635.  Control client memory use when deleting
lots of targets.

* subversion/libsvn_wc/update_editor.c (do_entry_deletion): Use a
  subpool.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion