Removes a user from a channel.

Required Params

• channel - Channel to remove user from.
• user - User to remove from channel.

Errors the API can return:

• cant_kick_from_general - User cannot be removed from #general.
• cant_kick_from_last_channel - User cannot be removed from the last channel they're in.
• cant_kick_self - Authenticated user can't kick themselves from a channel.
• channel_not_found - Value passed for channel was invalid.
• not_in_channel - User was not in the channel.
• restricted_action - A team preference prevents the authenticated user from kicking.
• user_not_found - Value passed for user was invalid.