Resolve a compiler warning about const mismatch.

* subversion/libsvn_wc/wc_db.c
  (db_read_inherited_props,
   svn_wc__db_read_inherited_props): Remove const from parameter.

* subversion/libsvn_wc/wc_db.h
  (svn_wc__db_read_inherited_props): Remove const from parameter.

* subversion/libsvn_wc/status.c
  (collect_ignore_patterns): Remove const from variable.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1454324 13f79535-47bb-0310-9956-ffa450edef68