flake8 checks

youtube_dl/extractor/canvas.py

@@ -1,7 +1,6 @@
 from __future__ import unicode_literals
 
 import re
-import json
 
 from .common import InfoExtractor
 from .gigya import GigyaBaseIE
@@ -292,7 +291,7 @@ class VrtNUIE(GigyaBaseIE):
         while login_attempt <= 3:
             try:
                 # get XSRF Token
-                xsrf_req = self._request_webpage('https://token.vrt.be/vrtnuinitlogin',
+                self._request_webpage('https://token.vrt.be/vrtnuinitlogin',
                                       None, note='Requesting XSRF Token', errnote='Could not get XSRF Token',
                                       query={'provider': 'site', 'destination': 'https://www.vrt.be/vrtnu/'})
 
@@ -308,7 +307,7 @@ class VrtNUIE(GigyaBaseIE):
                         break
 
                 # do login
-                vrt_token = self._request_webpage(
+                self._request_webpage(
                     'https://login.vrt.be/perform_login',
                     None, note='Requesting a token', errnote='Could not get a token',
                     headers={}, data=urlencode_postdata(post_data)