Remove a few (currently) unused variables.  I trust they will be resurrected when the appropriate time comes.
Remove a few (currently) unused variables.  I trust they will be resurrected
when the appropriate time comes.

* subversion/libsvn_delta/compat.c
  (alter_symlink_cb, move_cb, rotate_cb): Remove baton variables in these
    as-yet-unimplemented functions.

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