forked from qt-creator/qt-creator
This reverts commit dcb8681cb7.
The effort to handle asynchronous loading is not required for the
qmllivepreview (for which it had been introduced).
Task-number: QTCREATORBUG-19648
Change-Id: I20cbd318dedb3da43d4993c0c0a1910ffe6d5761
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>