roles: Remove unreachable "packages" tags

After reörganizing for dynamic includes these tags will never be reached
because the children of dynamic includes do not inherit tags from their
parents as they did with static imports.

roles/common/tasks/firewall_Debian.yml

@@ -5,9 +5,7 @@
   loop:
     - firewalld
     - tidy
-  tags:
-    - packages
-    - firewall
+  tags: firewall
 
 - name: Copy firewalld public zone file
   when: ansible_distribution_major_version is version_compare('8', '>=')