Remove flag com.android.launcher3.enable_fallback_overview_in_window from trunk_staging.

This change was automatically created by rolling back a Gantry workflow.

Bug: 292269949
Flag: com.android.launcher3.enable_fallback_overview_in_window
Ignore-AOSP-First: Flag change added internally for future AOSP release
Change-Id: Ifdf6f3b5f6910637f0fad629079308f133aa3497
1 file changed