fixup! Pass CI env vars to docker image

Author: Forest Hoffman

code-server-e2e.dockerfile

@@ -48,4 +48,4 @@ RUN npm i -g yarn@1.12.3 npx
 
 # Copy CI environment variables, if they exist.
 ARG env_vars
-RUN if [ "$env_vars" != "" ]; then export $env_vars; env; fi
+RUN if [ "$env_vars" != "" ]; then export $env_vars; fi