hg: jdk/submit: 8235629: Remove unnecessary calls to Thread::current

[ioi.lam at oracle.com]

Changeset: 241659594595
Author:    iklam
Date:      2019-12-11 15:25 -0800
URL:       https://hg.openjdk.java.net/jdk/submit/rev/241659594595

8235629: Remove unnecessary calls to Thread::current
Reviewed-by: coleenp, ccheung, hseigel

! src/hotspot/share/classfile/classLoader.cpp
! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/systemDictionary.cpp
! src/hotspot/share/memory/metaspaceShared.cpp
! src/hotspot/share/oops/instanceKlass.cpp
! src/hotspot/share/oops/klass.cpp
! src/hotspot/share/oops/klassVtable.cpp
! src/hotspot/share/oops/method.cpp
! src/hotspot/share/runtime/mutex.cpp