they have been semi-warnings for a long enough time now.

Change-Id: I3fffd63f7b44b30d2dc18cdcd74221c10e98399d
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
(cherry picked from qtbase/704aec46230bf7ce29927bae03902e86454aecec)