I've disabled svn_wc__db_kind_subdir (#ifdef'd out, except - oops - that #define isn't active during processing of wc_db.h ...) and some temp APIs that use it.
Now it looks like db_status_obstructed{,_*} are totally unref'd and can
go too.
Bert, Greg, sanity check please. Nothing you still want to use these
for, or stuff we need to do before disabling them, is there?
- Julian
