Drop "I" prefix from IBatchOperationTarget, IFlow and IFlowManagerService.

- This task is a part of ONOS-1687.

Change-Id: I24d14b5ecf4152bfb3f239c7b03725302bc307dd
diff --git a/src/main/java/net/onrc/onos/api/flowmanager/SingleDstTreeFlow.java b/src/main/java/net/onrc/onos/api/flowmanager/SingleDstTreeFlow.java
index 473b7e8..58c5b38 100644
--- a/src/main/java/net/onrc/onos/api/flowmanager/SingleDstTreeFlow.java
+++ b/src/main/java/net/onrc/onos/api/flowmanager/SingleDstTreeFlow.java
@@ -17,7 +17,7 @@
  * NOTE: This class might generate the MatchActionPlan which includes the MAC
  * address modifications or other the label-switching-like schemes.
  */
-public class SingleDstTreeFlow implements IFlow {
+public class SingleDstTreeFlow implements Flow {
     protected final FlowId id;
     protected PacketMatch match;
     protected Set<SwitchPort> ingressPorts;