Fully remove ConfigAPI.val

qutebrowser/config/configfiles.py

@@ -131,7 +131,6 @@ class ConfigAPI:
     Attributes:
         _config: The main Config object to use.
         _keyconfig: The KeyConfig object.
-        val: A matching ConfigContainer object.
         load_autoconfig: Whether autoconfig.yml should be loaded.
         errors: Errors which occurred while setting options.
     """
@@ -141,7 +140,6 @@ class ConfigAPI:
         self._keyconfig = keyconfig
         self.load_autoconfig = True
         self.errors = []
-        self.val = None  # Set when initialized
 
     @contextlib.contextmanager
     def _handle_error(self, action, name):

tests/unit/config/test_configfiles.py

@@ -284,6 +284,8 @@ class TestConfigPy:
         error = api.errors[0]
         assert error.text == "Unhandled exception"
         assert isinstance(error.exception, AttributeError)
+        message = "'ConfigAPI' object has no attribute 'val'"
+        assert str(error.exception) == message
 
     @pytest.mark.parametrize('line', ["c.foo = 42", "config.set('foo', 42)"])
     def test_config_error(self, confpy, line):