Do not adjust adu when total downloads are lower.

Fixes #6397

src/olympia/addons/cron.py

@@ -67,13 +67,7 @@ def _update_addon_average_daily_users(data, **kw):
             task_log.debug(m % (count, pk))
             continue
 
-        if (count - addon.total_downloads) > 10000:
+        addon.update(average_daily_users=count)
-            # Adjust ADU to equal total downloads so bundled add-ons don't
-            # skew the results when sorting by users.
-            task_log.info('Readjusted ADU count for addon %s' % addon.slug)
-            addon.update(average_daily_users=addon.total_downloads)
-        else:
-            addon.update(average_daily_users=count)
 
 
 def update_addon_download_totals():

src/olympia/addons/tests/test_cron.py

@@ -200,17 +200,6 @@ class AvgDailyUserCountTestCase(TestCase):
         super(AvgDailyUserCountTestCase, self).setUp()
         self.create_switch('local-statistics-processing')
 
-    def test_adu_is_adjusted_in_cron(self):
-        addon = Addon.objects.get(pk=3615)
-        assert addon.average_daily_users == 6000000
-        assert \
-            addon.average_daily_users > addon.total_downloads + 10000, \
-            ('Unexpected ADU count. ADU of %d not greater than %d' % (
-                addon.average_daily_users, addon.total_downloads + 10000))
-        cron._update_addon_average_daily_users([(3615, 6000000)])
-        addon = Addon.objects.get(pk=3615)
-        assert addon.average_daily_users == addon.total_downloads
-
     def test_13_day_window(self):
         addon = Addon.objects.get(pk=3615)