Fix minor Flake8 issue

Author: Cito

tests/utilities/test_strip_ignored_characters.py

@@ -7,8 +7,7 @@
 from graphql.language import Lexer, Source, TokenKind, parse
 from graphql.utilities import strip_ignored_characters
 
-from ..fixtures import kitchen_sink_query  # noqa: F401
-from ..fixtures import kitchen_sink_sdl
+from ..fixtures import kitchen_sink_query, kitchen_sink_sdl  # noqa: F401
 from ..utils import dedent