RFR: SKARA-1333: Sponsor label only removed if PR is actually sponsored [v2]

[Erik Joelsson]

On Wed, 9 Feb 2022 02:13:14 GMT, Guoxiong Li <gli at openjdk.org> wrote:

>> Hi all,
>> 
>> If an author types `/integrate` command, the `sponsor` label is added. When the author becomes the committer and types the command `/integrate` again, the `sponsor` label doesn't been removed. It is good to remove the label `sponsor`, too, just like the labels `rfr` and `ready`. This patch fixes it and adds a test case.
>> 
>> Thanks for taking the time to review.
>> 
>> Best Regards,
>> -- Guoxiong
>
> Guoxiong Li has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix comments.

Marked as reviewed by erikj (Lead).

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PR: https://git.openjdk.java.net/skara/pull/1282