git: openjdk/loom: fibers: Remove fixme. VM.AllThreads returning vthreads will be allowed by spec.

[duke]

Changeset: 1ca5443d
Author:    Chris Plummer <chris.plummer at oracle.com>
Date:      2022-02-28 04:13:54 +0000
URL:       https://git.openjdk.java.net/loom/commit/1ca5443d8410f762296ecd9bde330edfccb967d8

Remove fixme. VM.AllThreads returning vthreads will be allowed by spec.

! src/jdk.jdwp.agent/share/native/libjdwp/VirtualMachineImpl.c