remove unused variables

main.go

@@ -23,7 +23,6 @@ const (
 
 type dragger struct {
 	events chan x.GenericEvent
-	startedDrag bool
 	start  [2]int16
 	end    [2]int16
 }
@@ -50,11 +49,9 @@ func (s *dragger) watch() int {
 		}
 
 		if generic.GetEventCode() == Pressed {
-			s.startedDrag = true
 			s.start = [2]int16{event.EventX, event.EventY}
 		} else {
 			s.end = [2]int16{event.EventX, event.EventY}
-			s.startedDrag = false
 			return s.distance()
 		}
 	}