libweston/renderer-gl/gl-renderer.c: gl_renderer_attach_dmabuf(): remove...
libweston/renderer-gl/gl-renderer.c: gl_renderer_attach_dmabuf(): remove assert() for egl_image_unref() return value
- egl_image_unref() returns refcount
- accept refcount > 0 to allow to assign one buffer to multiple surfaces
Signed-off-by: ahe Andreas.Heynig@meetwise.com