Now that the pending stream is associated with the xwl_pixmap for
EGLStream and the xwl_pixmap itself is associated to the pixmap, we have
a reliable way to get to those data from any pending stream.
As a result, the list of pending streams that we keep in the EGLStream
global structure becomes useless.
So we can drop the pending stream's xwl_pixmap and also the list of
pending streams altogether, and save us a walk though that list for each
callback.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Suggested-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
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