Fix for ticket no. ONOS-4754. Adding break statement to FLOW_REMOVED also

Change-Id: Icfcd52ad098e51911b7b5d3e97ad24c011a139ef
diff --git a/protocols/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OpenFlowControllerImpl.java b/protocols/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OpenFlowControllerImpl.java
index c88a207..09ed98c 100644
--- a/protocols/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OpenFlowControllerImpl.java
+++ b/protocols/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OpenFlowControllerImpl.java
@@ -303,8 +303,10 @@
         case FLOW_REMOVED:
             if (monitorAllEvents) {
                 executorFlowRemoved.execute(new OFMessageHandler(dpid, msg));
-                break;
+            } else {
+                executorMsgs.execute(new OFMessageHandler(dpid, msg));
             }
+            break;
         case ERROR:
             log.debug("Received error message from {}: {}", dpid, msg);
             errorMsgs.putIfAbsent(msg.getXid(), true);