RFR: 616: Sponsorship information is incorrect.

[Robin Westberg]

In the "this PR requires a sponsor" message, there's no need to display different messages depending on author status,
just say that Committer status is required.

Best regards,
Robin

-------------

Commit messages:
 - Skip discerning between authors and non-authors for the sponsor message

Changes: https://git.openjdk.java.net/skara/pull/811/files
 Webrev: https://webrevs.openjdk.java.net/?repo=skara&pr=811&range=00
  Issue: https://bugs.openjdk.java.net/browse/SKARA-616
  Stats: 7 lines in 1 file changed: 0 ins; 5 del; 2 mod
  Patch: https://git.openjdk.java.net/skara/pull/811.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/811/head:pull/811

PR: https://git.openjdk.java.net/skara/pull/811