Revert "Enable Shell Transitions"

Revert submission 19199517-enable_shell_transit

Reason for revert: DroidMonitor-triggered revert due to breakage, bug b/253049434 b/253109117 b/253181889 b/253271977
Reverted Changes:
I85f9565b3:Enable Shell Transitions
I75d0fe964:Enable Shell Transitions
I0565e423a:Enable Shell Transitions
I98bf8f0aa:Enable Shell Transitions

Change-Id: I55cea1edaf56e6e9a7297f139f4f8374b649e3da
diff --git a/libraries/flicker/src/com/android/server/wm/flicker/helpers/ShellTransitionUtils.kt b/libraries/flicker/src/com/android/server/wm/flicker/helpers/ShellTransitionUtils.kt
index 70f1e27..5251ddf 100644
--- a/libraries/flicker/src/com/android/server/wm/flicker/helpers/ShellTransitionUtils.kt
+++ b/libraries/flicker/src/com/android/server/wm/flicker/helpers/ShellTransitionUtils.kt
@@ -20,4 +20,4 @@
 
 import android.os.SystemProperties
 
-val isShellTransitionsEnabled = SystemProperties.getBoolean("persist.wm.debug.shell_transit", true)
+val isShellTransitionsEnabled = SystemProperties.getBoolean("persist.wm.debug.shell_transit", false)