QProcess: remove the note that it freezes threads on QNX

The notes were added in commit e3363fd945b3ab961fba720ee013533dd8ba2930
by Rafael, because at the time QNX 6.5.0 did not support fork() in
multithreaded applications. We had to use posix_spawn(3) and that
doesn't support setting the child's working directory, so we needed to
freeze the application while chdir(2)ing in doSpawn().

doSpawn() was removed in commit 005a8bfbf0022f03dafafcf2b5c438ccf0675a49
for Qt 5.7, because fork() works since QNX 6.6.0. But the comments were
accidentally left behind.

Fixes: QTBUG-112990
Pick-to: 5.15 6.2 6.5
Change-Id: I3b169860d8bd41e9be6bfffd17577276eaabb855
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

0 files changed, 0 insertions, 0 deletions