Turn off GlanceableHubContainerController when scene container is enabled

This class is only used to add and manage the glanceable hub when
flexiglass is not enabled and should not run when flexiglass is enabled

Bug: 338072097
Fix: 321332798
Test: atest GlanceableHubContainerControllerTest NotificationShadeWindowViewControllerTest
      also manually verified that there are not crashes when turning
      flexiglass on with this change
Flag: ACONFIG com.android.systemui.communal_hub TEAMFOOD
Change-Id: I89c2094fca8fb8162de1f4b2ccdca01e9c074b9b