Remove wheezy-specific ufw task.

roles/common/tasks/ufw.yml

 ---
-# Installs and configures ufw, which in turn uses iptables for firewall management
+# Installs and configures ufw, which in turn uses iptables for firewall management.
+# ufw includes sensible ICMP defaults.
 
-# ufw includes sensible icmp defaults
 - name: Install ufw
   apt: pkg=ufw state=present
   tags:
   register: ufw_config
   changed_when: False  # never report as "changed"
 
-- name: Disable logging (workaround for known bug in Debian 7)
-  ufw: logging=off
-  when: "ansible_lsb['codename'] == 'wheezy' and 'LOGLEVEL=off' not in ufw_config.stdout"