QJniObject: remove unused private methods

These three private methods were introduced in
4e60681c879a54cf5b34862a30e27c492ed36363 together with the QJniObject
class.
Digging through the whole git log for the qjniobject.h header shows
that the functions were never used. Not in template or inline methods,
and not even in the out-of-line methods.
Considering all the above, removing these methods would not cause BiC
or SiC issues, so just do it.

Pick-to: 6.6
Change-Id: Iaeeefbc2f1002e9413fd16651abd71381362a536
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>

0 files changed, 0 insertions, 0 deletions