remove prepared statement

main.go

@@ -43,13 +43,7 @@ func (db *TimelineDB) closestEvents(t int64, n uint, llimit int64, ulimit int64)
 	limit ?
 	`
 
-	stmt, err := db.Prepare(query)
-	if err != nil {
-		return nil, err
-	}
-	defer stmt.Close()
-
-	rows, err := stmt.Query(llimit, ulimit, t, n)
+	rows, err := db.Query(query, llimit, ulimit, t, n)
 	if err != nil {
 		return nil, err
 	}