block: row: Fix crash when adding a new field in bio struct

When adding new field to struct bio there is a crash in the removed
code lines. This issue was introduced by commit
80a8f0f87bee18283e9ca0a8966ec97ad9f084e5 "block: row-iosched idling
triggered by readahead pages"

(Partly) reverting this patch till root cause is fixed (on FS level).

Change-Id: Ie82bc806ea52a6370b57aa15455c85b2db10d0da
Signed-off-by: Tanya Brokhman <tlinder@codeaurora.org>
Revert "cpufreq: interactive: don't schedule timer on offline cpu"

Time to upstream.

This reverts commit 7819f357d8b072d5e62e156e6d6e1defe2621c09.

Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>