Apply remove signal tool to road signs

[Ranran]

I think the remove signal tool has slightly eliminated the inconvenience of the player. Thank you for your work.
However, I think it's a little inconvenient that the remove signal tool only applies to railroad signals. Attempting to blow up a road sign with a regular removal tool can inadvertently blow up a pedestrian or city car.    If you are frustrated and click continuously, you may blow up to the road with excessive clicks. (as freddy said before).
So it would be nice to have a tool that could blow up the road sign directly.

[prissi]

The delete tool in principle allows to pass a parameter specifying the ogj type to delete ...