get rid of old commit work

Author: lindseymoore

source/old-content/reference/aggregation.txt

@@ -98,14 +98,6 @@ find the total number of documents which have the exact array
 
   count = coll.count({ 'categories' => [ 'Chinese', 'Seafood' ] })
 
-.. note::
-
-   The ``count`` method is not the same as the ``countDocuments``
-   method and may not support the same filters. ``countDocuments`` uses the
-   ``$match`` stage of the aggregation pipeline to filter documents. To learn more
-   about limitations of the ``$match`` stage, see :manual:`$match Restrictions </reference/operator/aggregation/match/#restrictions>`
-   in the MongoDB Server manual.
-
 Distinct
 ~~~~~~~~