--- a/src/hotspot/share/jfr/recorder/checkpoint/types/jfrType.hpp	Wed Sep 04 09:47:51 2019 +0200
+++ b/src/hotspot/share/jfr/recorder/checkpoint/types/jfrType.hpp	Wed Sep 04 09:47:55 2019 +0200
@@ -67,11 +67,6 @@
   void serialize(JfrCheckpointWriter& writer);
 };
 
-class G1HeapRegionTypeConstant : public JfrSerializer {
- public:
-  void serialize(JfrCheckpointWriter& writer);
-};
-
 class GCThresholdUpdaterConstant : public JfrSerializer {
  public:
   void serialize(JfrCheckpointWriter& writer);
@@ -87,11 +82,6 @@
   void serialize(JfrCheckpointWriter& writer);
 };
 
-class G1YCTypeConstant : public JfrSerializer {
- public:
-  void serialize(JfrCheckpointWriter& writer);
-};
-
 class ReferenceTypeConstant : public JfrSerializer {
  public:
   void serialize(JfrCheckpointWriter& writer);