misc: remove check on sync-metadata --source option (#48500)

src/authentic2/saml/management/commands/sync-metadata.py

@@ -317,12 +317,6 @@ Any other kind of attribute filter policy is unsupported.
         verbosity = int(options['verbosity'])
         source = options['source']
         metadata_file_path = options['metadata_file_path']
-        # Check sources
-        try:
-            if source is not None:
-                source.decode('ascii')
-        except UnicodeDecodeError:
-            raise CommandError('--source MUST be an ASCII string value')
         if metadata_file_path.startswith('http://') or metadata_file_path.startswith('https://'):
             response = requests.get(metadata_file_path)
             if not response.ok:

tests/test_commands.py

@@ -287,7 +287,7 @@ def test_resetpassword(simple_user):
 
 def test_sync_metadata(db):
     test_file = py.path.local(__file__).dirpath('metadata.xml').strpath
-    call_command('sync-metadata', test_file)
+    call_command('sync-metadata', test_file, source='abcd')
 
 
 def test_check_and_repair_managers_of_roles(db, capsys):