Remove public access modifiers to follow our convention

Change-Id: I7cd26d36eb22a12f7829037ab95f99039c417253
diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepMessage.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepMessage.java
index a6a71a1..d794fcd 100755
--- a/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepMessage.java
+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepMessage.java
@@ -45,7 +45,7 @@
     /**
      * Builder interface with get and set functions to build PCEP Message.
      */
-    public interface Builder {
+    interface Builder {
 
         /**
          * Builds PCEP Message.