Remove reactions from users that aren't the OP for pagination and trash can.

[whispersofthedawn]

Goal

When using pagination or the trash can symbol (the one used to delete embeds), it is set to only be able to use by the OP. It may help clean it up to delete reactions from people that aren't the OP.

Implementation Suggestion

Python already checks whether the person adding the reactions for pagination or the trash can is used by the OP, so it would be simple to use remove_reaction to get rid of the useless reactions.

[ToxicKidz]

Can I take this one?

[Akarys42]

Sure thing @ToxicKidz!

[ToxicKidz]

Is this just going to be changing bot/pagination.py?