bug#56510: Make some games obsolete (or just remove them from the menu)

[Stefan Kangas]

Severity: wishlist

Some of the games in Emacs look a bit dated.  I put it to you that they
are not excellent promotion for Emacs, and that we are better served by
having fewer but better games.

I suggest that we either remove some of them from the "Tools -> Games"
menu, or obsolete them outright.  Here are the ones that I don't think
pass the bar:

 - 5x5.el
 - blackbox.el
 - gomoku.el
 - pong.el
 - solitaire.el

I also ask if these games/libraries are really pulling their weight:

 - animate.el
 - handwrite.el
 - studly.el