diff -r f0312c7d5b37 -r ba6c248cae19 src/hotspot/cpu/ppc/globals_ppc.hpp
--- a/src/hotspot/cpu/ppc/globals_ppc.hpp	Wed Nov 13 11:21:15 2019 +0100
+++ b/src/hotspot/cpu/ppc/globals_ppc.hpp	Wed Nov 13 11:37:29 2019 +0100
@@ -67,9 +67,6 @@
 
 define_pd_global(bool, PreserveFramePointer,  false);
 
-// GC Ergo Flags
-define_pd_global(size_t, CMSYoungGenPerWorker, 16*M);  // Default max size of CMS young gen, per GC worker thread.
-
 define_pd_global(uintx, TypeProfileLevel, 111);
 
 define_pd_global(bool, CompactStrings, true);