Revert "BugId:98734 - Add reporting for adsinhead"

This reverts commit cd2b7822678b0936f64aafad07945fbe0875eeee.
Revert "BugId:98734 - Server-side test for adsinhead"

This reverts commit a45a6d2b4c70424f861f512dc711c94465ba3336.
ADEN-74 Always load ad code in head
ADEN-74 A/B test for checking on what event to trigger the ads
ADEN-74 Liftium to be run on load if in AB test