remove unnecessary if

src/model/stat.rs

@@ -30,7 +30,7 @@ impl BoatStat {
 SELECT 
     boat.id, 
     location.name AS location,
-    CAST(strftime('%Y', COALESCE(arrival, 'now')) AS INTEGER) AS year, 
+    CAST(strftime('%Y', arrival) AS INTEGER) AS year, 
     CAST(SUM(COALESCE(distance_in_km, 0)) AS INTEGER) AS rowed_km
 FROM 
     boat