It consists of two parts:
1. Redirecting users to the configured external storage
1. Allowing the external storage to request the static object(s)
on behalf of the user by means of specific tokens
Part of https://gitlab.com/gitlab-com/gl-infra/infrastructure/issues/6829
remove EE specific code
remove EE licence checks
move migration from EE to CE folder structure
move specs from EE to CE folder structure
remove EE specific flag specs