change README and auth.js

backend/routes/auth.js

@@ -141,24 +141,4 @@ router.post('/me/update', passport.authenticate('jwt', {session: false}), async
     res.status(200).json();
 });
 
-router.post('/pay_adhesion', passport.authenticate('jwt', {session: false}), async function(req, res, next) {
-    const student_number = req.body.student_number;
-
-    if (!student_number)
-        return res.status(400);
-
-    const dbUser = await User.findOne({student_number: req.body.student_number});
-
-
-    if (student_number)
-        dbUser.date_subscription = new Date();
-
-    try {
-        await dbUser.save();
-    } catch (e) {
-        return res.status(400).json(e);
-    }
-    res.status(200).json();
-});
-
 module.exports = router;