Remove deprecated instructions() method in the traffic treatment class

Change-Id: I739b35bdcbf9867c639c7b6ca4006f3eeafbb055
diff --git a/core/net/src/test/java/org/onosproject/net/proxyarp/impl/ProxyArpManagerTest.java b/core/net/src/test/java/org/onosproject/net/proxyarp/impl/ProxyArpManagerTest.java
index 09f4f14..5a4eb8b 100644
--- a/core/net/src/test/java/org/onosproject/net/proxyarp/impl/ProxyArpManagerTest.java
+++ b/core/net/src/test/java/org/onosproject/net/proxyarp/impl/ProxyArpManagerTest.java
@@ -503,9 +503,9 @@
     private void verifyPacketOut(Ethernet expected, ConnectPoint outPort,
             OutboundPacket actual) {
         assertArrayEquals(expected.serialize(), actual.data().array());
-        assertEquals(1, actual.treatment().instructions().size());
+        assertEquals(1, actual.treatment().immediate().size());
         assertEquals(outPort.deviceId(), actual.sendThrough());
-        Instruction instruction = actual.treatment().instructions().get(0);
+        Instruction instruction = actual.treatment().immediate().get(0);
         assertTrue(instruction instanceof OutputInstruction);
         assertEquals(outPort.port(), ((OutputInstruction) instruction).port());
     }