Revert "Fix inactivity notification emails."

This reverts commit 204df74e4b06b36cc9761964fbe2204a7d186b1d.
[Fix bug 967026][Fix bug Bug 970395] Fix inactive user notifications.

* Make send_remo_mail non-blocking
* Do not cc remobot
* Fix time filter in second report notification
* Exclude users with incomplete profiles from notifications
Merge pull request #731 from johngian/revert-notification-fix

Fix inactive user notifications