Pylint fixes.

rtv/subscription.py

@@ -50,7 +50,7 @@ class SubscriptionPage(Page):
 
         self.active = False
 
-    def _draw_item(self, win, data, inverted=False):
+    def _draw_item(self, win, data, inverted):
         n_rows, n_cols = win.getmaxyx()
         n_cols -= 1  # Leave space for the cursor in the first column
 

tests/test_content.py

@@ -12,11 +12,6 @@ from rtv.content import (
     Content, SubmissionContent, SubredditContent, SubscriptionContent)
 from rtv import exceptions
 
-try:
-    from unittest import mock
-except ImportError:
-    import mock
-
 
 def test_content_humanize_timestamp():