Drop favorites column

pkg/migration/20210709211508.go

@@ -98,7 +98,12 @@ func init() {
 				}
 			}
 
-			return nil
+			err = dropTableColum(tx, "tasks", "is_favorite")
+			if err != nil {
+				return err
+			}
+
+			return dropTableColum(tx, "lists", "is_favorite")
 		},
 		Rollback: func(tx *xorm.Engine) error {
 			return nil