[jdk11u-dev] RFR: 8249697: remove temporary fixes from java/lang/invoke/RicochetTest.java

[Andrew Lu]

I backport this for parity with 11.0.25-oracle.

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Commit messages:
 - Backport f8c1d7991780899a945918c3e7a19a470bdb7218

Changes: https://git.openjdk.org/jdk11u-dev/pull/2870/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2870&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8249697
  Stats: 7 lines in 1 file changed: 1 ins; 4 del; 2 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2870.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2870/head:pull/2870

PR: https://git.openjdk.org/jdk11u-dev/pull/2870