Merge "Revert "Allow pulling down the status bar in visual immersive mode"" into sc-dev am: ccbd8e1d am: 3a993b61

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14550642

Change-Id: Icecde9bc2fac37bd5f83c163e97bc8a7f39b16e0