Revert "Bug 1016822 - [Vertical Homescreen] Implement the RocketBar & status bar visuals properly"

This reverts commit fc0e994c2be749e6b279a90c9ac178db82c37a9b.
Bug 1016822 - [Vertical Homescreen] Implement the RocketBar & status bar visuals properly

Includes follow-up fix in bug 1018147.