Ev2 shims: Make sure that if we are providing content to alter_file(), we are also providing a checksum.
Ev2 shims: Make sure that if we are providing content to alter_file(), we
are also providing a checksum.

* subversion/libsvn_delta/compat.c
  (path_checksum_args): Remove checksum member.
  (process_actions): Checksum the content file.
  (ev2_apply_textdelta): Don't checksum the output stream.

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