DELIA-58441: Cobalt Crash observed during destroy in CobaltWindow

Reason for change: removing exit to fix crash.
Test Procedure: refer ticket.
Risks: None
Priority: P1
Signed-off-by: sramul630 <sunil_ramulu@comcast.com>

Change-Id: I0a6053fd80c205f3b321a6231fd61b2b9b1195f4