Revert "SF: Set an initial mode in response to hotplug for external displays"

This reverts commit fb078ab329818c116104f61e7c67c3b2ae9a8152.

Reason for revert: b/320901698

Bug: 320901698
Change-Id: Ia714380dade4f2eeb5d369713405f33d548b6e40
8 files changed