Removed the `worker` from keystone configuration

The configuration of ``worker`` can be removed for two reasons:

  * In Mitaka (and onward), it is two separate parameters:
    ``public_workers`` and ``admin_workers`` under section
    [eventlet_server], as shown in [1].  In master (Ocata),
    these options were removed.
  * In the preferred keystone deployment of using u/wsgi, and not
    eventlet server, this setting does not really take effect - as
    Apache will manage this instead of keystone.

These options can be removed.  Also, removed extra EOL spaces.

[1] https://github.com/openstack/keystone/blob/stable/mitaka/etc/keystone.conf.sample#L678-L696

keystone/templates/etc/_keystone.conf.tpl

@@ -2,7 +2,6 @@
 debug = {{ .Values.misc.debug }}
 use_syslog = False
 use_stderr = True
-workers = {{ .Values.misc.workers }}
 
 [database]
 connection = mysql+pymysql://{{ .Values.database.keystone_user }}:{{ .Values.database.keystone_password }}@{{ include "keystone_db_host" . }}/{{ .Values.database.keystone_database_name }}

keystone/values.yaml

@@ -53,7 +53,6 @@ database:
   keystone_user: keystone
 
 misc:
-  workers: 8
   debug: false
 
 dependencies: