Remove an uneeded external function.

* subversion/libsvn_wc/wc_db_private.h
  (svn_wc__db_scan_deletion_internal): Remove.

* subversion/libsvn_wc/wc_db.c
  (get_moved_to, scan_deletion_txn): Move earlier in file.
  (svn_wc__db_scan_deletion): Move earlier in file, call scan_deletion_txn.
  (get_info_for_copy, read_url_txn,
   svn_wc__db_global_relocate): Call scan_deletion_txn.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1440525 13f79535-47bb-0310-9956-ffa450edef68