DirectShow: remove debug output.

Task-number: QTBUG-38924
Change-Id: Ibc08fd99f6eb10035e4d7da963d4d384012bbdbf
Reviewed-by: Mitch Curtis <mitch.curtis@digia.com>
Android: Fix loading from qrc

On Android < 4.1 our temporary file is discarded without checking the
content. With this change we just open the file and pass the fd to the
mediaplayer instead.

Change-Id: I9233822725d8987c572b2d0b598721cee886de80
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>