Fix "unused variable" warning.  No functional change.
Fix "unused variable" warning.  No functional change.

* subversion/libsvn_ra_svn/marshal.c
  (read_item): drop unused variable.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1489820 13f79535-47bb-0310-9956-ffa450edef68

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