Revert "remove all scrolling changes for focused items."

Revert "remove all scrolling changes for focused items."

This reverts commit 377179bdaf84aa1a86621cdfa64ed43613ab9d45.

The main claim of https://phab.enlightenment.org/T1205 was fixed in
the previous commit 30cada369. This code will be modifed again in the
next commit due to the api change during development life cycle.

Note: do not blindly revert this commit if you have any problem with
widget item focus. This commit is not related to any fundamental cause
of the issues. If you have a problem, please contact me first.

seojuyung2@gmail.com or SeoZ on IRC.

Thanks.