Revert "format migration"

as migrations store a hash it is not possible to change the
migrationfiles afterwards.

This reverts commit fdcc89ec1f.

migrations/20210330103013_addinglanguage.sql

@@ -1,5 +1,4 @@
 -- Add migration script here
-ALTER TABLE
+
-    users
+ALTER TABLE users 
-ADD
+ADD COLUMN language Text NOT NULL DEFAULT "en";
-    COLUMN language Text NOT NULL DEFAULT "en";