[jdk17u-dev] RFR: 8209776: Refactor jdk/security/JavaDotSecurity/ifdefs.sh to plain java test

[Goetz Lindenmaier]

I backport this test-only change for parity with 11.0.17-oracle.

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Commit messages:
 - Backport 9711033780d2329a376ea5b2a72c0da2e1731114

Changes: https://git.openjdk.java.net/jdk17u-dev/pull/403/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=403&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8209776
  Stats: 159 lines in 2 files changed: 101 ins; 58 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk17u-dev/pull/403.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u-dev pull/403/head:pull/403

PR: https://git.openjdk.java.net/jdk17u-dev/pull/403