Following up on r1538702, really restrict the moves to what is moved
at a specific op-depth by using an existing query.

* subversion/libsvn_wc/wc-queries.sql
  (STMT_SELECT_MOVED_PAIRS_DEPTH): Remove now unused query.

* subversion/libsvn_wc/wc_db_update_move.c
  (break_moved_away_children_internal): Use more restricted query.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1538936 13f79535-47bb-0310-9956-ffa450edef68