RFR: 8249659: [Lanai] Crash while running RenderPerfTest with metal pipeli…

[Alexey Ushakov]

…ne - wiredQuadAA

Removed release of autorelease object (MTLRenderPassDescriptor)

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Commit messages:
 - 8249659: [Lanai] Crash while running RenderPerfTest with metal pipeline - wiredQuadAA

Changes: https://git.openjdk.java.net/lanai/pull/75/files
 Webrev: https://webrevs.openjdk.java.net/lanai/75/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8249659
  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.java.net/lanai/pull/75.diff
  Fetch: git fetch https://git.openjdk.java.net/lanai pull/75/head:pull/75

PR: https://git.openjdk.java.net/lanai/pull/75