Remove dead code

core/src/cluster_info.rs

@@ -440,19 +440,6 @@ impl ClusterInfo {
             .map(|x| (x.value.epoch_slots().unwrap(), x.insert_timestamp))
     }
 
-    pub fn get_gossiped_root_for_node(&self, pubkey: &Pubkey, since: Option<u64>) -> Option<u64> {
-        self.gossip
-            .crds
-            .table
-            .get(&CrdsValueLabel::EpochSlots(*pubkey))
-            .filter(|x| {
-                since
-                    .map(|since| x.insert_timestamp > since)
-                    .unwrap_or(true)
-            })
-            .map(|x| x.value.epoch_slots().unwrap().root)
-    }
-
     pub fn get_contact_info_for_node(&self, pubkey: &Pubkey) -> Option<&ContactInfo> {
         self.gossip
             .crds