パラメータ
TOKEN = ...
APPLICATION_ID = ...
一覧の取得
$ curl -X GET -H "Authorization: Bot $TOKEN" https://discord.com/api/v10/applications/$APPLICATION_ID/commands
全部消す
$ curl -X PUT -H "Authorization: Bot $TOKEN" -H 'Content-Type application/json' -d '[]' https://discord.com/api/v10/applications/$APPLICATION_ID/commands