Revert "Refactor all uses of DisplayController singleton INSTANCE"

Revert submission 31490053-DisplayControllRefactorForCD

Reason for revert: Leak is displayProvider

Reverted changes: /q/submissionid:31490053-DisplayControllRefactorForCD

Change-Id: Ib65150cdde765be009b5c4ce960f9fe025de9e60
diff --git a/src/com/android/launcher3/LauncherPrefs.kt b/src/com/android/launcher3/LauncherPrefs.kt
index fba94fd..2a5cd63 100644
--- a/src/com/android/launcher3/LauncherPrefs.kt
+++ b/src/com/android/launcher3/LauncherPrefs.kt
@@ -299,7 +299,7 @@
         @JvmField
         val ALLOW_ROTATION =
             backedUpItem(RotationHelper.ALLOW_ROTATION_PREFERENCE_KEY, Boolean::class.java) {
-                RotationHelper.getAllowRotationDefaultValue(DisplayController.get(it).info)
+                RotationHelper.getAllowRotationDefaultValue(DisplayController.INSTANCE.get(it).info)
             }
 
         @JvmField