Remove Instruction.DROP deprecated in Emu

Change-Id: Ida5a5f489815dd1e972f6bfc8646e1e1bf0e8edd
diff --git a/core/store/dist/src/main/java/org/onosproject/store/statistic/impl/DistributedFlowStatisticStore.java b/core/store/dist/src/main/java/org/onosproject/store/statistic/impl/DistributedFlowStatisticStore.java
index c3f907a..dd28810 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/statistic/impl/DistributedFlowStatisticStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/statistic/impl/DistributedFlowStatisticStore.java
@@ -326,9 +326,6 @@
                 Instructions.OutputInstruction out = (Instructions.OutputInstruction) i;
                 return out.port();
             }
-            if (i.type() == Instruction.Type.DROP) {
-                return PortNumber.P0;
-            }
         }
         return null;
     }
@@ -360,4 +357,4 @@
     private int getMessageHandlerThreadPoolSize() {
         return messageHandlerThreadPoolSize;
     }
-}
\ No newline at end of file
+}