[jdk21] RFR: 8295894: Remove SECOM certificate that is expiring in September 2023

Wed Jul 12 17:59:35 UTC 2023

JDK 21 will be released in Sept 2023 so this certificate should be removed from it as there would only be a week or so left once the release is shipped before the certificate expired.

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Commit messages:
 - Backport fd7fddb6ed24e0ae4b5e18fb27fd80230941dc0b

Changes: https://git.openjdk.org/jdk21/pull/114/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21&pr=114&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8295894
  Stats: 32 lines in 2 files changed: 0 ins; 29 del; 3 mod
  Patch: https://git.openjdk.org/jdk21/pull/114.diff
  Fetch: git fetch https://git.openjdk.org/jdk21.git pull/114/head:pull/114

PR: https://git.openjdk.org/jdk21/pull/114