--- a/src/hotspot/share/runtime/threadSMR.cpp	Wed Nov 20 10:37:46 2019 +0100
+++ b/src/hotspot/share/runtime/threadSMR.cpp	Wed Nov 20 09:10:02 2019 -0500
@@ -601,8 +601,6 @@
 }
 
 void ThreadsList::dec_nested_handle_cnt() {
-  // The decrement only needs to be MO_ACQ_REL since the reference
-  // counter is volatile (and the hazard ptr is already NULL).
   Atomic::dec(&_nested_handle_cnt);
 }
 
@@ -646,8 +644,6 @@
 }
 
 void ThreadsList::inc_nested_handle_cnt() {
-  // The increment needs to be MO_SEQ_CST so that the reference counter
-  // update is seen before the subsequent hazard ptr update.
   Atomic::inc(&_nested_handle_cnt);
 }