hg: jdk/submit: 8235273: nmethodLocker not needed for COMPILED_METHOD_UNLOAD events

[coleen.phillimore at oracle.com]

Changeset: e71931b1c3b7
Author:    coleenp
Date:      2019-12-04 13:48 -0500
URL:       https://hg.openjdk.java.net/jdk/submit/rev/e71931b1c3b7

8235273: nmethodLocker not needed for COMPILED_METHOD_UNLOAD events
Summary: remove unnecessary nmethodLocker
Reviewed-by: dholmes, sspitsyn

! src/hotspot/share/code/nmethod.cpp
! src/hotspot/share/prims/jvmtiImpl.cpp
! src/hotspot/share/prims/jvmtiImpl.hpp