something other than Overkill , Please
Unfortunately there are no other option rather than overkill in my knowledge
mostly i can use trim or select object and delete
Select these lines which you want to delete and right click on it and choose the delete option.
select this ( regions ,Lines , Polylines) than click delete
I think overkill is good command...
I Tried Overkill with these options but not working especially with regions.
You can use the Overkill command.this command deletes the duplicate objects and combine the overlapping line and arc s.