RFR: 8296161: [aarch64] Remove unused "pcrel" addressing mode tag

[Christian Hagedorn]

On Tue, 1 Nov 2022 09:50:36 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> Please review this trivial change to remove the unused Address::pcrel
> enumerator from the Address::mode enum.

Looks good and trivial!

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Marked as reviewed by chagedorn (Reviewer).

PR: https://git.openjdk.org/jdk/pull/10927