Remove final modifier because of private method

Change-Id: Ia3678bb5ebe7a1719efade734f3212d16d68e38f
diff --git a/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LldpLinkProvider.java b/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LldpLinkProvider.java
index e5423c2..eddf4b4 100644
--- a/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LldpLinkProvider.java
+++ b/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LldpLinkProvider.java
@@ -229,7 +229,7 @@
         super(new ProviderId("lldp", PROVIDER_NAME));
     }
 
-    private final String buildSrcMac() {
+    private String buildSrcMac() {
         String srcMac = ProbedLinkProvider.fingerprintMac(clusterMetadataService.getClusterMetadata());
         String defMac = ProbedLinkProvider.defaultMac();
         if (srcMac.equals(defMac)) {