Removes a reaction

async def deletereaction(self, ctx, *, reactor : str):
        """Removes a reaction"""
        data = self.config.get(ctx.message.server.id, {})
        keyword = data.get(reactor, {})
        if keyword:
            data.pop(reactor)
            await self.config.put(ctx.message.server.id, data)
            await self.bot.responses.success(message="Reaction '{}' has been deleted.".format(reactor))
        else:
            await self.bot.responses.failure(message="Reaction '{}' was not found.".format(reactor))