Fix focus after moving

After moving, we were setting accessibility action back to NONE, so the
focus ended up being cleared from the tile that had just moved. Remove
that and instead just make sure that focus is cleared just when we are
resetting.

Test: manual
Fixes: 216037855
Change-Id: I6b7c7c20f52b5cfa40a0b4a671c7f150816a5e66