RFR: 1885: Add method deleteDeployKeys to HostedRepository [v3]

[Erik Joelsson]

On Wed, 19 Apr 2023 22:24:49 GMT, Zhao Song <zsong at openjdk.org> wrote:

>> The method deleteDeployKeys is designed to delete deploy keys from this repository.
>
> Zhao Song has updated the pull request incrementally with one additional commit since the last revision:
> 
>   fix problems

Marked as reviewed by erikj (Lead).

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PR Review: https://git.openjdk.org/skara/pull/1505#pullrequestreview-1392975989