Drop Matrix support

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

registration/auth.py

@@ -1,17 +0,0 @@
-# Copyright (C) 2020 by Animath
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-from cas_server.auth import DjangoAuthUser  # pragma: no cover
-
-
-class CustomAuthUser(DjangoAuthUser):  # pragma: no cover
-    """
-    Override Django Auth User model to define a custom Matrix username.
-    """
-
-    def attributs(self):
-        d = super().attributs()
-        if self.user:
-            d["matrix_username"] = self.user.registration.matrix_username
-            d["display_name"] = str(self.user.registration)
-        return d

registration/fixtures/initial.json

@@ -1,26 +0,0 @@
-[
-    {
-        "model": "cas_server.servicepattern",
-        "pk": 1,
-        "fields": {
-            "pos": 100,
-            "name": "Plateforme du TFJM²",
-            "pattern": "^https://tfjm.org(:8448)?/.*$",
-            "user_field": "matrix_username",
-            "restrict_users": false,
-            "proxy": true,
-            "proxy_callback": true,
-            "single_log_out": true,
-            "single_log_out_callback": ""
-        }
-    },
-    {
-        "model": "cas_server.replaceattributname",
-        "pk": 1,
-        "fields": {
-            "name": "display_name",
-            "replace": "",
-            "service_pattern": 1
-        }
-    }
-]

registration/models.py

@@ -85,10 +85,6 @@ class Registration(PolymorphicModel):
     def is_volunteer(self):
         return isinstance(self, VolunteerRegistration)
 
-    @property
-    def matrix_username(self):
-        return f"tfjm_{self.user.pk}"
-
     def get_absolute_url(self):
         return reverse_lazy("registration:user_detail", args=(self.user_id,))