diff --git a/pytest.ini b/pytest.ini
index 6c4c21baf..8b97237c3 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -116,6 +116,7 @@ flake8-ignore =
     scrapy/spiders/feed.py E501 E261
     scrapy/spiders/sitemap.py E501
     # scrapy/utils
+    scrapy/utils/asyncio.py E501
     scrapy/utils/benchserver.py E501
     scrapy/utils/conf.py E402 E502 E501
     scrapy/utils/console.py E261 E306 E305
@@ -227,6 +228,7 @@ flake8-ignore =
     tests/test_spidermiddleware_output_chain.py E501 W293 E226
     tests/test_spidermiddleware_referer.py E501 F841 E125 E201 E261 E124 E501 E241 E121
     tests/test_squeues.py E501 E701 E741
+    tests/test_utils_asyncio.py E501
     tests/test_utils_conf.py E501 E303 E128
     tests/test_utils_curl.py E501
     tests/test_utils_datatypes.py E402 E501 E305
diff --git a/scrapy/cmdline.py b/scrapy/cmdline.py
index d66f0cc2d..213e99bc0 100644
--- a/scrapy/cmdline.py
+++ b/scrapy/cmdline.py
@@ -9,7 +9,7 @@ import pkg_resources
 import scrapy
 from scrapy.commands import ScrapyCommand
 from scrapy.exceptions import UsageError
-from scrapy.utils.asyncio import install_asyncio_reactor, is_asyncio_supported
+from scrapy.utils.asyncio import install_asyncio_reactor
 from scrapy.utils.misc import walk_modules
 from scrapy.utils.project import inside_project, get_project_settings
 from scrapy.utils.python import garbage_collect
diff --git a/scrapy/utils/asyncio.py b/scrapy/utils/asyncio.py
index e9e3bdd88..f732774f1 100644
--- a/scrapy/utils/asyncio.py
+++ b/scrapy/utils/asyncio.py
@@ -1,6 +1,3 @@
-#coding: utf-8
-
-
 def install_asyncio_reactor():
     """ Tries to install AsyncioSelectorReactor
     """