xwayland: Change randr_output status when call xwl_output_remove()

kylin0061 requested to merge kylin0061/xserver:fix-hotplug-monitor-detect into master

When remove a monitor, will call xwl_output_remove(), but in this function the xwl_output->randr_output status does not changed. So when call RRTellChanged, it won't send a signal. Like Qt signal (QGuiApplication::screenRemoved) needs this signal.

Fix commit 204f10c2 ("xwayland: Call RRTellChanged if the RandR configuration may have changed")

Signed-off-by: zhoulei zhoulei@kylinos.cn Signed-off-by: Morose chenlinxiang@kylinos.cn

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