FrameGrabber: Remove warning when stopped


Remove some noise from logging.

Pick-to: 6.12
Change-Id: I1b171384aee56d9836fa324f502a81df72163a20
Reviewed-by: Tim Blechmann <tim.blechmann@qt.io>
Reviewed-by: Mikko Hallamaa <mikko.hallamaa@qt.io>
Reviewed-by: Artem Dyomin <artem.dyomin@qt.io>
commite6cfa747f44903f8d9b686fcfe9b7509b3a3387d
parent8e85eab7b1dc5a88f64b107d1b6c5ef6950cc59f
authorNils Petter Skålerud <nils.petter.skalerud@qt.io>
committerNils Petter Skålerud <nils.petter.skalerud@qt.io>
commit timeWed, 21 Oct 2026 08:11:21 +0000