Don't include notifier, browsers, and browsermob-proxy roles in playbook

for analyticstack.

cf. https://github.com/edx/configuration/pull/2753#discussion-diff-51787402

playbooks/vagrant-analytics.yml

@@ -30,10 +30,6 @@
     - ecomworker
     - { role: 'rabbitmq', rabbitmq_ip: '127.0.0.1' }
     - programs
-    - role: notifier
-      NOTIFIER_DIGEST_TASK_INTERVAL: "5"
-    - browsers
-    - browsermob-proxy
     - local_dev
     - demo
     - oauth_client_setup