[jdk11u-dev] RFR: 8226706: (se) Reduce the number of outer loop iterations on Windows in java/nio/channels/Selector/RacyDeregister.java

[Amos Shi]

Backport of [JDK-8226706](https://bugs.openjdk.org/browse/JDK-8226706)

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Commit messages:
 - Backport 4d1ff6a295539e1654c69eb88657af6e59603402

Changes: https://git.openjdk.org/jdk11u-dev/pull/2306/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2306&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8226706
  Stats: 7 lines in 1 file changed: 0 ins; 5 del; 2 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2306.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2306/head:pull/2306

PR: https://git.openjdk.org/jdk11u-dev/pull/2306