Revert "Fix issue #10226007: Reset apps restores most of the changed settings..."

This reverts commit 2e8c2f3e0057756c7945b029188d382980afee34.
Revert "IntentService: Fix to run with a lower priority flag."

This reverts commit c8ccd4bd081bf5c74912d2c1d12f8cced1031bd8.
Revert "Fix one wifi and ethernet concurrency bug"

This reverts commit 5c09f1794a56adc2e636d960f4547878a958c64d.
Revert "FastScroller: Fix to use appropriate index"

This reverts commit 26c516e0090f7b314ae3227201d0d45e5b1d1b98.