Revert "[1/2] Base: Option to enable Notification Light when screen is on"

This reverts commit c129512328b59913ebee67f6d132d81b2a0f84e1.
[1/2] Base: Option to enable Notification Light when screen is on

This makes it possible to let the Notification LED flash even when the screen is on

Change-Id: I58be9646cdc84d4765342a5ab45b4641c3d5daba