debian: custom dh_auto_clean no longer needed

qubes-builder now takes care of it

debian/rules

@@ -21,7 +21,3 @@ override_dh_fixperms:
 
 override_dh_systemd_start:
 	dh_systemd_start --no-restart-on-upgrade
-
-override_dh_auto_clean:
-	dh_auto_clean
-	rm -f deb/* rpm/*/*