Fix style issues

toot/commands.py

@@ -43,7 +43,7 @@ def get_timeline_generator(app, user, args):
 def timeline(app, user, args):
     generator = get_timeline_generator(app, user, args)
 
-    while(True):
+    while True:
         try:
             items = next(generator)
         except StopIteration:

toot/tui/timeline.py

@@ -236,8 +236,8 @@ class Timeline(urwid.Columns):
         index = self.get_status_index(status.id)
         assert self.statuses[index].id == status.id  # Sanity check
 
-        del(self.statuses[index])
-        del(self.status_list.body[index])
+        del self.statuses[index]
+        del self.status_list.body[index]
         self.refresh_status_details()