Avoid unused call to GuessVerificationProgress in NotifyHeaderTip

src/interfaces/node.cpp

@@ -312,7 +312,7 @@ public:
         return MakeHandler(
             ::uiInterface.NotifyHeaderTip_connect([fn](bool initial_download, const CBlockIndex* block) {
                 fn(initial_download, block->nHeight, block->GetBlockTime(),
-                    GuessVerificationProgress(Params().TxData(), block));
+                    /* verification progress is unused when a header was received */ 0);
             }));
     }
     InitInterfaces m_interfaces;