Removing extra lines in DefaultTrafficTreatment

Change-Id: I83c0070f66ed433eb91be9478b6978f3de1b5f9a
diff --git a/core/api/src/main/java/org/onosproject/net/flow/DefaultTrafficTreatment.java b/core/api/src/main/java/org/onosproject/net/flow/DefaultTrafficTreatment.java
index 8502503..a628725 100644
--- a/core/api/src/main/java/org/onosproject/net/flow/DefaultTrafficTreatment.java
+++ b/core/api/src/main/java/org/onosproject/net/flow/DefaultTrafficTreatment.java
@@ -211,8 +211,6 @@
 
         List<Instruction> current = immediate;
 
-
-
         // Creates a new builder
         private Builder() {
         }