Issue seems not fixed, it requires more work

This reverts commit 4f6470bb.

Change-Id: I308ea4e0d5ace60cf730944e1883966fc6f8f8ce

Fluentd actually parse all files in /var/log/kolla/*/*.log as Openstack
services files.
Dnsmasq file /var/log/kolla/neutron/dnsmasq.log, must be add to
exclude_path to avoid this warning message:
"/var/log/kolla/neutron/dnsmasq.log unreadable. It is excluded and would
be examined next time."

Change-Id: I8dc5320b9ed299200c4f1e6ee52d34a918e2f110
Closes-Bug: #1678530

* add fluentd role
* remove heka configure

Co-Authored-By: yangzb09 <yangzb09@qq.com>

Partially-Implements: blueprint add-fluentd-role

Change-Id: Ica804a99f5bb8b157f406299c5982b7b6283b3e3