Remove the test class from test_jinja.py

tests/utils/test_jinja.py

@@ -32,11 +32,7 @@ def _read_file(path):
         raise ValueError("Invalid path {}!".format(path))
 
 
-class JinjaTests(object):
-
-    """Tests for getting template via jinja."""
-
-    def test_simple_template(self, monkeypatch):
+def test_simple_template(monkeypatch):
     """Test with a simple template."""
     monkeypatch.setattr(
         'qutebrowser.utils.jinja.utils.read_file',
@@ -47,7 +43,8 @@ class JinjaTests(object):
     data = template.render(var='World')  # pylint: disable=no-member
     assert data == "Hello World"
 
-    def test_utf8(self, monkeypatch):
+
+def test_utf8(monkeypatch):
     """Test rendering with an UTF8 template.
 
     This was an attempt to get a failing test case for #127 but it seems