Remove unnecessary logic from HomeControlsComponentInteractor

There is logic to attempt a restart of the dream if the dream crashed
due to a package update. However, this is not necessary as we already
poke the user activity timeout when a dream crashes - so the dream would
naturally start again the next time the device times out.

This is necessary since it reduces the amount of information we need to
pass between the dream (running in foreground user) and the system user.

Bug: 370691405
Test: atest HomeControlsComponentInteractorTest
Flag: com.android.systemui.home_controls_dream_hsum
Change-Id: I6e71156c603478350ae283ca972c86dbc4732d52