Revert "Theme immersive mode cling."

This reverts commit db3f48914ce7028903c809bc6795c7a1cd889fc8.
Revert "Add ability to theme quick settings battery tiles"

This reverts commit 8e52b802308cf7a425e492cad5a6a58c3f7bb923.
Revert "Themes: Tests: Hide new private APIs"

This reverts commit 9c30a269558870dbefa52629d173fd8b70a43445.
Revert "Themes: Get resources with an explicit theme attached."

This reverts commit 6c059d65179fe67cca8c7c06675136281c8f50f8.