And remove the redundant AUTOMOC lines.
This also avoids a few policy related warnings.
Task-number: QTBUG-126201
Pick-to: 6.8
Change-Id: Idaa58d7fbc0236aa2091ead43d5a0e6f396647e1
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
Reviewed-by: Olivier De Cannière <olivier.decanniere@qt.io>