RFR: 8254178: Remove .hgignore

Sat Oct 17 07:56:08 UTC 2020

On Wed, 7 Oct 2020 18:19:40 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> After migration to Git, this serves no purpose. The file is not updated, does not seem to be used. We can easily remove
> it.
> There is also .hgtags, but that might have some value for verification, so let's keep it around until Mercurial repos
> are completely dead for everyone. .hgtags removal is tracked as JDK-8254318.

I agree that we can remove the `.hgignore` file and the removal looks good. Reviewed.

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Marked as reviewed by ehelin (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/549