Remove an adaption to Pythons older than 3.7

python/nav/web/auth/remote_user.py

@@ -18,27 +18,13 @@
 """
 import logging
 from os.path import join
+import secrets
 
 from nav.auditlog.models import LogEntry
 from nav.config import NAVConfigParser
 from nav.models.profiles import Account
 from nav.web.auth.utils import ACCOUNT_ID_VAR
 
-try:
-    # Python 3.6+
-    import secrets
-
-    def fake_password(length):
-        return secrets.token_urlsafe(length)
-
-except ImportError:
-    from random import choice
-    import string
-
-    def fake_password(length):
-        symbols = string.ascii_letters + string.punctuation + string.digits
-        return u"".join(choice(symbols) for i in range(length))
-
 
 __all__ = []
 
@@ -61,6 +47,10 @@ class RemoteUserConfigParser(NAVConfigParser):
 _config = RemoteUserConfigParser()
 
 
+def fake_password(length):
+    return secrets.token_urlsafe(length)
+
+
 def authenticate(request):
     """Authenticate username from http header REMOTE_USER