plugin(twilio): update twilio plugin info (#41504)

Updates the Twilio plugin information to use our defaults pointing to
the Sentry Team and our repo.

src/sentry_plugins/twilio/plugin.py

@@ -95,8 +95,6 @@ class TwilioConfigurationForm(forms.Form):
 
 
 class TwilioPlugin(CorePluginMixin, NotificationPlugin):
-    author = "Matt Robenolt"
-    author_url = "https://github.com/mattrobenolt"
     version = sentry.VERSION
     description = DESCRIPTION
     resource_links = (