Follow-up to r1526439.

* subversion/libsvn_ra_serf/commit.c
  (add_file): Remove redundant check for 'sline.code != 200'.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1534173 13f79535-47bb-0310-9956-ffa450edef68