Catch exception when unlinkToDeath

Catch the exception to avoid the system down.

Bug: 238417834
Test: atest CtsCaontentCaptureService
Change-Id: Ifacb91d9e961b71df0ac41690b952be981711870
Merged-In: Ifacb91d9e961b71df0ac41690b952be981711870
1 file changed