Unblock the qtdeclarative dependency update.
This behavior change is causing a regression for QQmlPreviewHandler's
zoom feature. Back out of the change for now, until we can find a way
to make both use cases work.
This reverts commit 1c0a56a2f3.
Change-Id: I1b3d84504bbcb4f2b2250a20194fdaf4ab4fd97f
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>