diff -r f0312c7d5b37 -r ba6c248cae19 src/hotspot/share/runtime/mutexLocker.cpp
--- a/src/hotspot/share/runtime/mutexLocker.cpp	Wed Nov 13 11:21:15 2019 +0100
+++ b/src/hotspot/share/runtime/mutexLocker.cpp	Wed Nov 13 11:37:29 2019 +0100
@@ -263,10 +263,6 @@
   def(PerfDataMemAlloc_lock        , PaddedMutex  , leaf,        true,  _safepoint_check_always); // used for allocating PerfData memory for performance data
   def(PerfDataManager_lock         , PaddedMutex  , leaf,        true,  _safepoint_check_always); // used for synchronized access to PerfDataManager resources
 
-  // CMS_modUnionTable_lock                   leaf
-  // CMS_bitMap_lock                          leaf 1
-  // CMS_freeList_lock                        leaf 2
-
   def(Threads_lock                 , PaddedMonitor, barrier,     true,  _safepoint_check_always);  // Used for safepoint protocol.
   def(NonJavaThreadsList_lock      , PaddedMutex,   leaf,        true,  _safepoint_check_never);
   def(NonJavaThreadsListSync_lock  , PaddedMutex,   leaf,        true,  _safepoint_check_never);