This patch fixes an issue when a font that was added with
QFontDatabase::addApplicationFont can not be removed any more.
The reason for that is that QFontconfigDatabase::addApplicationFont
adds the font to the FontConfig application set from where it
cannot be removed any more and is picked up every time the font database
is repopulated (e.g. after a call to QFontDatabase::removeApplicationFont).
This also fixes the QFontDatabase autotest which unfortunately does
not fail on linux, because it tries to add "FreeMono" (which in most
cases is already there as a system font). So this patch removes FreeMono
and adds LED_REAL as test font.
Change-Id: I70fc823075923aa426da1eb3e052affcc416e399
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>