proxies: drop ipv6 restart script

Yesterdays fix: a script that restarted networking to bring back a ipv6
route on proxy11, causes:
Todays bug: restarting the interface every minute causes the nameserver
to burp and not find sundries01, so all the rsyncs fail. It seems to
handle this just fine now, so lets retire this glorious hack.

Signed-off-by: Kevin Fenzi <kevin@scrye.com>

files/scripts/restart-broken-ipv6.cron

@@ -1 +0,0 @@
-* * * * * root /usr/local/bin/restart-broken-ipv6

playbooks/groups/proxies.yml

@@ -154,13 +154,3 @@
   - name: make sure selinux contexts are right on srv
     command: restorecon -R /srv
     changed_when: false
-
-  - name: install restart ipv6 script on proxies that have problems keeping ipv6 routes
-    copy: src="{{ files }}/scripts/restart-broken-ipv6" dest=/usr/local/bin/restart-broken-ipv6 mode=0755
-    when: inventory_hostname.startswith('proxy11.fedoraproject')
-    tags: restart-ipv6
-
-  - name: setup cron job to check/fix ipv6
-    copy: src="{{ files }}/scripts/restart-broken-ipv6.cron" dest=/etc/cron.d/restart-broken-ipv6 mode=0644
-    when: inventory_hostname.startswith('proxy11.fedoraproject')
-    tags: restart-ipv6