Remove "public" to follow our convention

Change-Id: Ic5fa8744cbcb4c704780c8467ae0f31fce3327ce
diff --git a/core/api/src/main/java/org/onosproject/net/Annotations.java b/core/api/src/main/java/org/onosproject/net/Annotations.java
index db16143..4ed7060 100644
--- a/core/api/src/main/java/org/onosproject/net/Annotations.java
+++ b/core/api/src/main/java/org/onosproject/net/Annotations.java
@@ -27,7 +27,7 @@
      *
      * @return annotation keys
      */
-    public Set<String> keys();
+    Set<String> keys();
 
     /**
      * Returns the value of the specified annotation.
@@ -35,6 +35,6 @@
      * @param key annotation key
      * @return annotation value
      */
-    public String value(String key);
+    String value(String key);
 
 }