Let Puppet update all packages on non-controllers

With I02f7cf07792765359f19fdf357024d9e48690e42[1] in puppet-tripleo,
puppet is capable of updating all packages itself on non controller
nodes now.

This is a safer mechanism than using the exclude logic in yum_update.sh
since that can cause depdency problems across sub packages.

[1] https://review.openstack.org/#/c/261041/
Closes-Bug: 1534785

Change-Id: I9075a1bb85baa65a9d0afc5d0fd31a1f99a98819

extraconfig/tasks/yum_update.sh

@@ -150,11 +150,11 @@ openstack-nova-scheduler"
     kill $(ps ax | grep -e "keepalived.*\.pid-vrrp" | awk '{print $1}') 2>/dev/null || :
     kill $(ps ax | grep -e "radvd.*\.pid\.radvd" | awk '{print $1}') 2>/dev/null || :
 else
-    echo "Excluding upgrading packages that are handled by config management tooling"
-    command_arguments="$command_arguments --skip-broken"
-    for exclude in $(cat /var/lib/tripleo/installed-packages/* | sort -u); do
-        command_arguments="$command_arguments --exclude $exclude"
-    done
+    echo "Upgrading openstack-puppet-modules"
+    yum -y update openstack-puppet-modules
+    echo "Upgrading other packages is handled by config management tooling"
+    echo -n "true" > $heat_outputs_path.update_managed_packages
+    exit 0
 fi
 
 command=${command:-update}
@@ -199,9 +199,6 @@ if [[ "$pacemaker_status" == "active" ]] ; then
     fi
 
     pcs status
-
-else
-    echo -n "true" > $heat_outputs_path.update_managed_packages
 fi
 
 echo "Finished yum_update.sh on server $deploy_server_id at `date`"