Revert "Bug 1042105 - [User Story] Icon prioritization in the status bar"

This reverts commit 7e4678128cdd6d296b67679fbe827845d19e7ec7.
Bug 994495 - Solve various problems of Korean keyboard under FxOS 1.4+
Merge pull request #22758 from timdream/keyboard-jshangul

Bug 994495 - Solve various problems of Korean keyboard under FxOS, r=timdream
Bug 994495 -- (follow-up) resetUpperCase -> setUpperCase, r=me