Revert "Release PREVENT_BYPASS_KEYGUARD flag"

This reverts commit 30651ca3af98ba3e0917e97c61a032671b0072fb.

Reason for revert: broke some cts tests
fixes: 276934137
fixes: 276924513

Change-Id: Ied3b64f21f1423d9275b7ecea06d46508c63a023
diff --git a/packages/SystemUI/src/com/android/systemui/flags/Flags.kt b/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
index e5d363e..1d243f5 100644
--- a/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
+++ b/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
@@ -224,7 +224,7 @@
     /** Whether to inflate the bouncer view on a background thread. */
     // TODO(b/273341787): Tracking Bug
     @JvmField
-    val PREVENT_BYPASS_KEYGUARD = releasedFlag(230, "prevent_bypass_keyguard")
+    val PREVENT_BYPASS_KEYGUARD = unreleasedFlag(230, "prevent_bypass_keyguard", teamfood = true)
 
     /** Whether to use a new data source for intents to run on keyguard dismissal. */
     @JvmField