remove lms-preview vars file (duplicate)

playbooks/roles/lms-preview/vars/main.yml

-# variables common to the lms role, automatically loaded
-# when the role is included
----
-lms_auth_config:
-  'CONTENTSTORE':
-    'ENGINE':  'xmodule.contentstore.mongo.MongoContentStore'
-  'MODULESTORE':
-    'default':
-      'ENGINE':  'xmodule.modulestore.mongo.MongoModuleStore'
- 
-lms_env_config:
-  'CACHES':
-    'default':
-      'BACKEND':  'django.core.cache.backends.memcached.MemcachedCache'
-      'KEY_FUNCTION':  'util.memcache.safe_key'
-    'general':
-      'BACKEND':  'django.core.cache.backends.memcached.MemcachedCache'
-      'KEY_FUNCTION':  'util.memcache.safe_key'
-    'mongo_metadata_inheritance':
-      'BACKEND':  'django.core.cache.backends.memcached.MemcachedCache'
-      'KEY_FUNCTION':  'util.memcache.safe_key'
-      'TIMEOUT': 300
-    'staticfiles':
-      'BACKEND':  'django.core.cache.backends.memcached.MemcachedCache'
-      'KEY_FUNCTION':  'util.memcache.safe_key'
-  'CERT_QUEUE':  'certificates'
-#  'COURSE_LISTINGS':
-#    'default': ['MITx/6.002x/2012_Fall']
-#    'stage-berkeley': [ 'BerkeleyX/CS169/fa12']
-#    'stage-harvard': [ 'HarvardX/CS50/2012H']
-#    'stage-mit': [ 'MITx/3.091/MIT_2012_Fall']
-#    'stage-num': [ 'MITx/6.002x-NUM/2012_Fall_NUM']
-#    'stage-sjsu': [ 'MITx/6.002x-EE98/2012_Fall_SJSU']
-  'LOCAL_LOGLEVEL':  'INFO'
-#  'META_UNIVERSITIES':
-#    'UTx': [ 'UTAustinX']
-  'MITX_FEATURES':
-    'AUTH_USE_OPENID_PROVIDER': true
-    'CERTIFICATES_ENABLED': true
-    'ENABLE_DISCUSSION_SERVICE': true
-    'ENABLE_INSTRUCTOR_ANALYTICS': true
-    'ENABLE_PEARSON_HACK_TEST': false
-    'SUBDOMAIN_BRANDING': false
-    'SUBDOMAIN_COURSE_LISTINGS': false
-#  'SUBDOMAIN_BRANDING':
-#    'stage-berkeley':  'BerkeleyX'
-#    'stage-harvard':  'HarvardX'
-#    'stage-mit':  'MITx'
-#    'stage-num':  'MITx'
-#    'stage-sjsu':  'MITx'
-#  'VIRTUAL_UNIVERSITIES': []
-  'WIKI_ENABLED': true
-
-lms_source_repo: git@github.com:edx/mitx.git
-lms_debian_pkgs:
-  - apparmor-utils
-  - aspell
-  - build-essential
-  - curl
-  - dvipng
-  - fabric
-  - facter
-  - g++
-  - gcc
-  - gfortran
-  - ghostscript
-  - git
-  - github-cli
-  - graphviz
-  - graphviz-dev
-  - gunicorn
-  - inoticoming
-  - ipython
-  - libcrypt-ssleay-perl
-  - libcurl4-openssl-dev
-  - libdigest-sha-perl
-  - libfreetype6-dev
-  - libgeos-dev
-  - libgraphviz-dev
-  - libjpeg8-dev
-  - liblapack-dev
-  - liblwp-protocol-https-perl
-  - libmysqlclient-dev
-  - libnet-amazon-ec2-perl
-  - libpng12-dev
-  - libreadline-dev
-  - libreadline6-dev
-  - libssl-dev
-  - libswitch-perl
-  - libwww-perl
-  - libxml++2.6-dev
-  - libxml2-dev
-  - libxml2-utils
-  - libxslt1-dev
-  - maven2
-  - mongodb
-  - mongodb-clients
-  - mysql-client
-  - ntp
-  - openjdk-7-jdk
-  - openjdk-7-jre
-  - pep8
-  - perl
-  - pkg-config
-  - postfix
-  - pylint
-  - python-boto
-  - python-coverage-test-runner
-  - python-django-nose
-  - python-jenkins
-  - python-nose
-  - python-nosexcover
-  - python-numpy
-  - python-pip
-  - python-scipy
-  - rake
-  - reprepro
-  - rsyslog
-  - rubygems
-  - sqlite3
-  - super
-  - vagrant
-  - yui-compressor
-  - zip
-  - zlib1g-dev