Remove deprecated flag on a method that has no replacement

Change-Id: Iece715e3c6985f0df77c23a3ef6f3b6dab9cb2db
diff --git a/core/api/src/main/java/org/onosproject/net/Link.java b/core/api/src/main/java/org/onosproject/net/Link.java
index 2bce4fd..1ed923a 100644
--- a/core/api/src/main/java/org/onosproject/net/Link.java
+++ b/core/api/src/main/java/org/onosproject/net/Link.java
@@ -110,9 +110,7 @@
      * Indicates if the link is to be considered durable.
      *
      * @return true if the link is durable
-     * @deprecated in Falcon Release - replaced by isConfigured()
      */
-    @Deprecated
     boolean isDurable();
 
     /**