Revert "Active Display: make Display Active TO configurable [2/2]"

This reverts commit 3212473c383087080460bf52b03409e572e5ce39.
Revert "Fix conflict"

This reverts commit 4fb5fbe2eeb05fb1a5f0227eb42cd5252bab829d.
Revert "Active display: allow hiding low priority notifications. [2/2]"

This reverts commit 7e5e4641d6214f9efe447ba36acdf1587289a1b5.