Following up on r1453805, convert all but one remaining callers of
svn_wc__db_with_txn to SVN_WC__DB_WITH_TXN().

The remaining caller uses multiple callbacks combined.

* subversion/libsvn_wc/wc_db.c
  (svn_wc__db_op_copy_file,
   svn_wc__db_op_add_directory,
   svn_wc__db_op_add_file,
   svn_wc__db_op_add_symlink,
   svn_wc__db_op_revert,
   svn_wc__db_op_delete): Update caller.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1453858 13f79535-47bb-0310-9956-ffa450edef68