Remove no longer valid debug comment

src/gamestate.cpp

@@ -241,7 +241,7 @@ bool GameState::moveColumnCardToFoundation(int columnId, int foundationId) {
     ensureColumnRevealed(columnId);
     qDebug() << "> Moving complete";
 
-    emit columnsChanged(); // CRASH (not if I remove the delete col line though)
+    emit columnsChanged();
     emit foundationChanged();
     return true;
 }