Remove unused cri_dockerd_enabled configuration (#9259)

Since the commit fad29661 cri_dockerd_enabled
has not been used. But the packet_ubuntu22-aio-docker.yml still contains
the configuration and causes confusions.
This removes the configuration for cleanup.

tests/files/packet_ubuntu22-aio-docker.yml

@@ -15,4 +15,3 @@ enable_nodelocaldns: False
 container_manager: docker
 etcd_deployment_type: docker
 resolvconf_mode: docker_dns
-cri_dockerd_enabled: true