Remove “Made by maian_sos” from goal description

[Wuzzy2]

Many scenarios goal descriptions have “Made by maian_sos” at the end.
IMHO the scenario text is not the place to write credits. The credits are. It's actually unusual that the scenario author is written in the description, most scenarios don't do this.

Just to be clear: I don't want to downplay anyone's contribution to the project. Obviously, authors shall be credited. But I think the credits are better stored somewhere else.

The scenario description is meant to be short and succinct, and I find this additional text to be distracting.

[Gymnasiast]

I have to admit: I agree. I have done the same with some of the official objects, moving the author from the description field into the "author" field.

I do think it is important that we put the scenario credits somewhere in the game.

[733737]

This issue would only be partially fixed since I only have been able to update a few scenarios