When a node is removed during update, also remove the move information
referring to this node to avoid creating an inconsistent nodes table.

* subversion/libsvn_wc/wc_db.c
  (svn_wc__db_retract_parent_delete): Remove moved_to state when the node no
    longer shadows something that is moved.

* subversion/tests/libsvn_wc/op-depth-test.c
  (test_funcs): Remove XFail marker from movedhere_extract_retract.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1538939 13f79535-47bb-0310-9956-ffa450edef68