Fix --forward-credentials flag in Breeze (#8554)

TESTING.rst

@@ -500,7 +500,6 @@ Currently forwarded credentials are:
   * credentials stored in ``${HOME}/.aws``, ``${HOME}/.boto``, and ``${HOME}/.s3`` (for AWS authentication)
   * credentials stored in ``${HOME}/.docker`` for docker
   * credentials stored in ``${HOME}/.kube`` for kubectl
-  * credentials stored in ``${HOME}/.ssh`` for SSH
 
 
 Adding a New System Test

scripts/ci/docker-compose/forward-credentials.yml

@@ -30,4 +30,3 @@ services:
       - ${HOME}/.gsutil:/root/.gsutil:cached
       - ${HOME}/.kube:/root/.kube:cached
       - ${HOME}/.s3:/root/.s3:cached
-      - ${HOME}/.ssh:/root/.ssh:cached