Delete documention for modules and themes without a D7 release

I agree on deleting the documentation for projects without a Drupal 7 release.

I do not see any value in having documentation for projects that stopped to be developed time ago. Porting that documentation to the new documentation guides is probably not worth the time spent in doing it.

@avpaderno I am happy to work on this ticket. Some questions about how to proceed:

These themes do not have D7 releases. Should I actually delete the pages completely?
https://www.drupal.org/node/418326
https://www.drupal.org/node/921400

When I try to edit those pages there is no option to delete.

There is a page status, and we could change that to deprecated?

Also, what about deprecated themes, should we also remove?

Will there be another step to remove the menu items on the site building guide?

Thanks!

@wylbur You do not have the necessary permission to delete book nodes you did not create.

We are still deciding what to do, though. A single comment that agrees on deleting those pages is probably not sufficient.

The pages mentioned have already been deleted, and work is continuing in the parent issue, #3443035: Review and migrate 'Site Building Guide' book