The flowrule is already removed, there is no need to remove it again

Change-Id: I47206dbab68042b02e4ee67c5f3816e595aac38f
diff --git a/core/net/src/main/java/org/onosproject/net/flow/impl/FlowRuleManager.java b/core/net/src/main/java/org/onosproject/net/flow/impl/FlowRuleManager.java
index 269d6b4..de92894 100644
--- a/core/net/src/main/java/org/onosproject/net/flow/impl/FlowRuleManager.java
+++ b/core/net/src/main/java/org/onosproject/net/flow/impl/FlowRuleManager.java
@@ -302,7 +302,6 @@
                 case PENDING_REMOVE:
                 case REMOVED:
                     event = store.removeFlowRule(flowRule);
-                    frp.removeFlowRule(flowRule);
                     break;
                 case ADDED:
                 case PENDING_ADD: