use Open edX in the motd, and delete unneeded variables

(cherry picked from commit 8e995343)

playbooks/roles/common_vars/defaults/main.yml

@@ -68,7 +68,6 @@ COMMON_CUSTOM_DHCLIENT_CONFIG: false
 # uncomment and specifity your domains.
 # COMMON_DHCLIENT_DNS_SEARCH: ["ec2.internal","example.com"]
 
-COMMON_MOTD_TEMPLATE: "motd.tail.j2"
 COMMON_SSH_PASSWORD_AUTH: "no"
 
 COMMON_SECURITY_UPDATES: no

playbooks/roles/vhost/templates/etc/motd.tail.j2

 *******************************************************************
-*         _ __  __                                                *
-*   _   _| |\ \/ /  This system is for the use of authorized      *
-* / -_) _` | >  <   users only.  Usage of this system may be      *
-* \___\__,_|/_/\_\  monitored and recorded by system personnel.   *
+*     ___                         _ __  __                        *
+*    / _ \ _ __ ___ _ _    ___ __| |\ \/ / (R)                    *
+*   | |_| | '_ \ -_) ' \  / -_) _` | >  <                         *
+*    \___/| .__/___|_|_|  \___\__,_|/_/\_\                        *
+*         |_|                                                     *
+*                                                                 *
+* This system is for the use of authorized users only.  Usage of  *
+* this system may be monitored and recorded by system personnel.  *
 *                                                                 *
 * Anyone using this system expressly consents to such monitoring  *
 * and is advised that if such monitoring reveals possible         *
 * evidence of criminal activity, system personnel may provide the *
 * evidence from such monitoring to law enforcement officials.     *
 *                                                                 *
+* Need help? https://open.edx.org/getting-help                    *
+*                                                                 *
 *******************************************************************

playbooks/vagrant-analytics.yml

@@ -8,7 +8,6 @@
     disable_edx_services: true
     mongo_enable_journal: false
     EDXAPP_NO_PREREQ_INSTALL: 0
-    COMMON_MOTD_TEMPLATE: 'devstack_motd.tail.j2'
     COMMON_SSH_PASSWORD_AUTH: "yes"
     EDXAPP_LMS_BASE: 127.0.0.1:8000
     EDXAPP_OAUTH_ENFORCE_SECURE: false

playbooks/vagrant-devstack.yml

@@ -8,7 +8,6 @@
     disable_edx_services: true
     mongo_enable_journal: false
     EDXAPP_NO_PREREQ_INSTALL: 0
-    COMMON_MOTD_TEMPLATE: 'devstack_motd.tail.j2'
     COMMON_SSH_PASSWORD_AUTH: "yes"
     EDXAPP_LMS_BASE: 127.0.0.1:8000
     EDXAPP_OAUTH_ENFORCE_SECURE: false

playbooks/vagrant/vagrant-devstack-delta.yml

@@ -6,7 +6,6 @@
     devstack: true
     disable_edx_services: true
     mongo_enable_journal: false
-    COMMON_MOTD_TEMPLATE: 'devstack_motd.tail.j2'
     COMMON_SSH_PASSWORD_AUTH: "yes"
     EDXAPP_LMS_BASE: 127.0.0.1:8000
     EDXAPP_OAUTH_ENFORCE_SECURE: false

playbooks/vagrant/vagrant-fullstack-delta.yml

@@ -5,7 +5,6 @@
   vars:
     disable_edx_services: true
     mongo_enable_journal: false
-    COMMON_MOTD_TEMPLATE: 'devstack_motd.tail.j2'
     COMMON_SSH_PASSWORD_AUTH: "yes"
     EDXAPP_LMS_BASE: 127.0.0.1:8000
     EDXAPP_OAUTH_ENFORCE_SECURE: false