[jdk17u-dev] RFR: 8285756: clean up use of bad arguments for `@clean` in langtools tests

[Goetz Lindenmaier]

I backport this to enable jtreg 7

-------------

Commit messages:
 - Backport 3312d8c620003125a88540fd5b2bacff34732ade

Changes: https://git.openjdk.org/jdk17u-dev/pull/1463/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1463&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8285756
  Stats: 3 lines in 3 files changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1463.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1463/head:pull/1463

PR: https://git.openjdk.org/jdk17u-dev/pull/1463