Revert "flatpak_create_dockerfile: create a skeleton /dev in the installroot"
Revert "flatpak_create_dockerfile: create a skeleton /dev in the installroot"

This isn't supported in rootless podman. We'll need to
find a different workaround.

This reverts commit 9411751f1a9d000147c907a5cecc573683976a68.

Signed-off-by: Harsh Modi <10511c7e5917154b560827e1a03cf4f47a4f7efa@redhat.com>

projectatomic/atomic-reactor,fr34k8/atomic-reactor,projectatomic/atomic-reactor,fr34k8/atomic-reactor