This cleans up all qtwayland patches that haven't been used in quite
some time and adapts a slightly recent patch that provided a
work-around to enable Qt debugging (using QT_LOGGING_RULES), which a
qtwayland update made it so the patch wouldn't apply anymore.
Bug-AGL: SPEC-4770
Change-Id: Ie24b4dff51500a9ab85635768045b2ee0c29bd0a Signed-off-by: Marius Vlad <marius.vlad@collabora.com>