Revert "QApp: Method to check for native style usage."

This reverts commit 958a4c9087e03502d0173735df4611a7f96a0463.

QApplicationPrivate::usesNativeStyle() introduced by that commit
was never used. We have an untested method that is furthermore
may return wrong results because it relies on the comparison
'app_style->objectName() != QApplicationPrivate::desktopStyleKey()',
but not all styles set their object names.

Conflicts:
    src/widgets/kernel/qapplication.cpp
    src/widgets/kernel/qapplication_p.h

Change-Id: I48d221f9387381db9ed51a7a068bfd0a0c2ed58d
Reviewed-by: Christoph Schleifenbaum <christoph.schleifenbaum@kdab.com>

0 files changed, 0 insertions, 0 deletions