Revert "Allow pulling down the status bar in visual immersive mode"

This reverts commit 9d14dbe89dcda57255afc30bcf9b65bc52e8bdbe.

Reason for revert: Likely broke tests
Bug: 188176340

Change-Id: I0c786e792322f7350b3bb16018ccb39e77a276a2
2 files changed