pythonrc: Clean up type ignores.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>

scripts/lib/pythonrc.py

@@ -1,7 +1,7 @@
 try:
     from django.conf import settings
     from zerver.models import *
-    from zerver.lib.actions import *  # type: ignore # Otherwise have duplicate imports with previous line
+    from zerver.lib.actions import *
     from analytics.models import *
 except Exception:
     import traceback