Found this redundant suppressions by IntelliJ IDEA inspection. It seems [JDK-8189330](https://bugs.openjdk.org/browse/JDK-8189330) made them redundant.
------------- Commit messages: - [PATCH] Remove redundant unchecked suppression in FileDescriptor Changes: https://git.openjdk.org/jdk/pull/10473/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10473&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8294608 Stats: 5 lines in 1 file changed: 0 ins; 4 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/10473.diff Fetch: git fetch https://git.openjdk.org/jdk pull/10473/head:pull/10473 PR: https://git.openjdk.org/jdk/pull/10473
