git: openjdk/loom: fibers: JVMTI review: make JvmtiVTMTDisabler no-op in configs without vthreads

[duke]

Changeset: 26d8cbbc
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2022-04-13 08:05:20 +0000
URL:       https://git.openjdk.java.net/loom/commit/26d8cbbca9b66e46310dc8c5430fa36e1c152afb

JVMTI review: make JvmtiVTMTDisabler no-op in configs without vthreads

! src/hotspot/share/prims/jvmtiThreadState.cpp