edx/edx-platform — pull request #3261 by jarv (2014-04-08 17:31:11+00:00)
Title: Only display active users for the certificate report

Also removes the unnecessary pre-fetch.
For certificate generations we will continue to generate certs for
both active and inactive users.

For the report we only display active users since it was confusing
due to the instructor dashboard only displaying active users.