Fix issue that expanding only search result led to weird scroll

This piece of code was making list scroll for last item, which doesn't
really resolve problem or help for expanding items at end of visible
 list. As such scrolling only to get last time into visible area doesn't
 benefit anything (but creates inconsistency).

Bug: 371508727
Test: With talkback & screenshot tests
Flag: EXEMPT BUGFIX
Change-Id: I7ca519edfbb3a18c10fa518e28183da365f740e4