Integrated: 7378: Update platform to 2021-06

[Marcus Hirt]

On Mon, 9 Aug 2021 22:08:14 GMT, Marcus Hirt <hirt at openjdk.org> wrote:

> ...and removing old ones.

This pull request has now been integrated.

Changeset: d05f377b
Author:    Marcus Hirt <hirt at openjdk.org>
URL:       https://git.openjdk.java.net/jmc/commit/d05f377bdc5e4028db618e0d5f79c052136e1578
Stats:     365 lines in 34 files changed: 60 ins; 242 del; 63 mod

7378: Update platform to 2021-06

Reviewed-by: ghb

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PR: https://git.openjdk.java.net/jmc/pull/301