RFR: Switch to using GitLab approvals instead of award_emojis

Mon Nov 2 13:32:57 UTC 2020

On Mon, 2 Nov 2020 13:27:32 GMT, Robin Westberg <rwestberg at openjdk.org> wrote:

> Later versions of GitLab allows Merge Request approvals even in the CE version, so we can start to use that instead of the award-emoji workaround used previously.

Looks good!

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Marked as reviewed by ehelin (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/937