DELETE
/api/fleet/agents/{agentId}
curl \
--request DELETE 'https://<KIBANA_URL>/api/fleet/agents/{agentId}' \
--header "Authorization: $API_KEY" \
--header "kbn-xsrf: true"
curl \
--request DELETE 'https://<KIBANA_URL>/api/fleet/agents/{agentId}' \
--header "Authorization: $API_KEY" \
--header "kbn-xsrf: true"