Remove public access modifiers to follow our convention

Change-Id: I7cd26d36eb22a12f7829037ab95f99039c417253
diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepMetricObject.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepMetricObject.java
index a6d553e..70e5bbd 100755
--- a/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepMetricObject.java
+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/PcepMetricObject.java
@@ -111,7 +111,7 @@
     /**
      * Builder interface with get and set functions to build Metric object.
      */
-    public interface Builder {
+    interface Builder {
 
         /**
          * Builds Metric Object.