RFR: 8252217: Crash in metal pipeline which running J2DBench test

[Alexey Ushakov]

Removed unnecessary release method

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Commit messages:
 - 8252217: Crash in metal pipeline which running J2DBench test

Changes: https://git.openjdk.java.net/lanai/pull/79/files
 Webrev: https://webrevs.openjdk.java.net/lanai/79/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8252217
  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.java.net/lanai/pull/79.diff
  Fetch: git fetch https://git.openjdk.java.net/lanai pull/79/head:pull/79

PR: https://git.openjdk.java.net/lanai/pull/79