--- a/src/hotspot/share/gc/z/z_globals.hpp	Mon Oct 21 09:55:48 2019 +0200
+++ b/src/hotspot/share/gc/z/z_globals.hpp	Mon Oct 21 09:55:58 2019 +0200
@@ -67,9 +67,6 @@
           "Time between statistics print outs (in seconds)")                \
           range(1, (uint)-1)                                                \
                                                                             \
-  diagnostic(bool, ZStatisticsForceTrace, false,                            \
-          "Force tracing of ZStats")                                        \
-                                                                            \
   diagnostic(bool, ZProactive, true,                                        \
           "Enable proactive GC cycles")                                     \
                                                                             \