Remove deprecated instructions() method in the traffic treatment class

Change-Id: I739b35bdcbf9867c639c7b6ca4006f3eeafbb055
diff --git a/core/api/src/main/java/org/onosproject/net/flowext/DefaultFlowRuleExt.java b/core/api/src/main/java/org/onosproject/net/flowext/DefaultFlowRuleExt.java
index 721cced..c72d4db 100644
--- a/core/api/src/main/java/org/onosproject/net/flowext/DefaultFlowRuleExt.java
+++ b/core/api/src/main/java/org/onosproject/net/flowext/DefaultFlowRuleExt.java
@@ -102,7 +102,7 @@
                 .add("deviceId", deviceId())
                 .add("priority", priority())
                 .add("selector", selector().criteria())
-                .add("treatment", treatment() == null ? "N/A" : treatment().instructions())
+                .add("treatment", treatment() == null ? "N/A" : treatment().allInstructions())
                         //.add("created", created)
                 .add("flowEntryExtension", flowEntryExtension)
                 .toString();