Remove undefined word Corporation from CCLA
What does this MR do?
Removes the (undefined) word "Corporation" from the CCLA, per advice from legal counsel.
Why was this MR needed?
The word Corporation was undefined, while the word "You" already included "legal entities".
What are the relevant issue numbers?
- https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/3685
- https://gitlab.com/gitlab-org/gitlab-ce/issues/15156
\cc @pmachle