[openqa-tests/sam/upstream-container] Remove `display=egl-headless

[Sam Thursfield <sthursfield src gnome org>]

commit 72e798378e7e37ac92a7abd22ee89f9efa869f14
Author: Sam Thursfield <sam thursfield codethink co uk>
Date:   Thu Oct 6 16:07:59 2022 +0200

    Remove `display=egl-headless
    
    This isn't available in the container.

 utils/start_job.sh | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/utils/start_job.sh b/utils/start_job.sh
index 886a2bb..76ae229 100755
--- a/utils/start_job.sh
+++ b/utils/start_job.sh
@@ -22,7 +22,6 @@ openqa-cli api --apikey $OPENQA_API_KEY --apisecret $OPENQA_API_SECRET \
   QEMUCPU=host \
   QEMUCPUS=2 \
   QEMURAM=2560 \
-  QEMU_APPEND="display egl-headless,gl=on" \
   QEMU_VIDEO_DEVICE="virtio-gpu-gl-pci,edid=on,max_outputs=1" \
   UEFI=1 \
   UEFI_PFLASH_CODE=/usr/share/qemu/ovmf-x86_64-code.bin \