Revert "al-ov: Use F4 to toggle Overview"

This reverts commit b4766815.

Reason for revert: Potential culprit for b/360959795- verifying through ABTD before revert submission. This is part of the standard investigation process, and does not mean your CL will be reverted.

Change-Id: I5c7c94d458acfd6688ed4f927d75870231d23458