diff --git a/src/validation.cpp b/src/validation.cpp
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -2111,15 +2111,6 @@
     FlushStateToDisk(chainparams, state, FlushStateMode::NONE);
 }
 
-static void DoWarning(const std::string &strWarning) {
-    static bool fWarned = false;
-    SetMiscWarning(strWarning);
-    if (!fWarned) {
-        AlertNotify(strWarning);
-        fWarned = true;
-    }
-}
-
 /**
  * Update chainActive and related internal data structures when adding a new
  * block to the chain tip.