Remove the AdminOnly check for the /remove command.

[BlitzOffline]

Currently the /remove command is admin only but it should be accessible to others as well. I am not really sure how it should work tho.
I have a few ideas tho:

• Leave it as is
• Make it vote maybe? Tho idk how that would work when someone uses /remove 5 which removes the next 5 songs. (maybe with reactions)
• Make it take in an index again instead of the amount and allow people to only remove the songs requested by themselves (admins should be able to remove anyone's songs). Also might want to allow everyone to remove songs added by the bot with the radio feature or maybe do something as the second option so a vote with reactions?