disable permanent deletion options for moderators without the permanent deletion permission

[thestinger]

Feature Request

We don't give most moderators access to permanent deletion since it's unnecessary and can result in mistakes that cannot be undone. Our moderators do make mistakes, and it's common to need to undo a ban. The same thing is going to apply to use of the spammer action. Anti-spam currently always provides these permanent deletion options. Our moderators find it confusing and we'll have to tell each one not to enable the options, which is a lot harder than just explaining to use the spammer action. This seems like an oversight since there's meant to be a permission for this and it can be bypassed through this extension.