bird: update .gitlab-ci.yml

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 37a2e2fae6bc3772234832e972eda4c1a22a3e1c..b7b20695277788bdc9aee73d91fde22e8fa73ab5 100644 (file)
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,7 +5,6 @@ variables:
   DOCKER_CMD: docker --config="$HOME/.docker/$CI_JOB_ID/"
   IMG_BASE: registry.labs.nic.cz/labs/bird
   TOOLS_DIR: /var/lib/gitlab-runner/bird-tools
-  DOCKER_DRIVER: overlay
 
 stages:
   - image