cmd: remove unused code
cmd: remove unused code

GoogleCloudPlatform/alertmanager,prometheus/alertmanager,GoogleCloudPlatform/alertmanager,Aloomaio/alertmanager,prometheus/alertmanager,GoogleCloudPlatform/alertmanager,Aloomaio/alertmanager,GoogleCloudPlatform/alertmanager,Kellel/alertmanager,Aloomaio/alertmanager,prometheus/alertmanager,prometheus/alertmanager,Kellel/alertmanager,Kellel/alertmanager