follow-up to r1592014:
Unbreak parse-diff-test 4 "test badly formatted git diff header"

* subversion/tests/libsvn_diff/parse-diff-test.c
  (bad_git_diff_header): Remove 'copy from' and 'copy to' header lines
    which are used as a fallback if a filename cannot be found in the
    git --diff line. Now the test's assumptions are correct again.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1592034 13f79535-47bb-0310-9956-ffa450edef68