The check was re-introduced in 7a9bc220c7
and moved to QtRootLayout in 6ff88f97a6.
It introduces an issue where the resizing of the application window does
not work if the its aspect ratio is different from the screen's aspect
ratio.
Fixes: QTBUG-126122
Pick-to: 6.7 6.7.2
Change-Id: Id6d26b247b9ca7a8d0e89e1fdea2d77db12a6cfe
Reviewed-by: Tinja Paavoseppä <tinja.paavoseppa@qt.io>
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
(cherry picked from commit a6b78e6f4dbbf688fc0b1d1487b86890b149d323)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>