Revert "tags: - 'molecule-notest'"

Reason:

  Running on linode instances, /etc/hosts file changes are worth
testing.

This reverts commit f51c228573.

tasks/main.yml

@@ -101,8 +101,7 @@
     owner: root
     group: root
     mode: 0644
-  tags:
-    - 'molecule-notest'
+  when: '"molecule" not in group_names'
 
 - lineinfile:
     path: /etc/hosts
@@ -111,8 +110,7 @@
     owner: root
     group: root
     mode: 0644
-  tags:
-    - 'molecule-notest'
+  when: '"molecule" not in group_names'
 # - name: Copy cni networking driver config into place
 #   blockinfile:
 #     name: "/etc/cni/net.d/podman.conflist"