simplify snooze: remove first run and GMT stuff

Change-Id: I21cd48b33cf565bc19e2545b2ced2eb6f8627a5f
Reviewed-on: http://review.couchbase.org/35580
Reviewed-by: abhinav dangeti <abhinav@couchbase.com>
Reviewed-by: Sundararaman Sridharan <sundar@couchbase.com>
Tested-by: Sundararaman Sridharan <sundar@couchbase.com>