venus/ci: remove redundant crosvm patch

VirglRenderer::export_blob doesn't need to handle opaque fd. That will
let rutabaga's export_blob to fail and fallback directly to the external
mapping path desired.

Signed-off-by: Yiwei Zhang <zzyiwei@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18693>
1 file changed