[Integrated] RFR: 6665: .project files still exist for removed platform definitions

[Alex Macdonald]

Changeset: 31d82a7d
Author:    Jie Kang <jkang at openjdk.org>
Committer: Alex Macdonald <aptmac at openjdk.org>
Date:      2020-01-07 15:38:19 +0000
URL:       https://git.openjdk.java.net/jmc/commit/31d82a7d

6665: .project files still exist for removed platform definitions

Reviewed-by: hirt

- releng/platform-definitions/platform-definition-2018-09/.project
- releng/platform-definitions/platform-definition-2018-12/.project
- releng/platform-definitions/platform-definition-2019-03/.project
- releng/platform-definitions/platform-definition-2019-06/.project