Update README.md to remove overridden get_queryset()

Author: adesor

README.md

@@ -79,6 +79,9 @@ class PlayersViewSet(FiltersMixin, viewsets.ModelViewSet):
     This viewset automatically provides `list`, `create`, `retrieve`,
     `update` and `destroy` actions.
     """
+    queryset = Player.objects.prefetch_related(
+        'teams'  # use prefetch_related to minimize db hits.
+    ).all()
     serializer_class = PlayerSerializer
     pagination_class = ResultSetPagination
     filter_backends = (filters.OrderingFilter,)
@@ -103,30 +106,6 @@ class PlayersViewSet(FiltersMixin, viewsets.ModelViewSet):
 
     # add validation on filters
     filter_validation_schema = players_query_schema
-
-    def get_queryset(self):
-        """
-        Optionally restricts the queryset by filtering against
-        query parameters in the URL.
-        """
-        query_params = self.request.query_params
-        url_params = self.kwargs
-
-        # get queryset_filters from FilterMixin
-        queryset_filters = self.get_db_filters(url_params, query_params)
-
-        # This dict will hold filter kwargs to pass in to Django ORM calls.
-        db_filters = queryset_filters['db_filters']
-
-        # This dict will hold exclude kwargs to pass in to Django ORM calls.
-        db_excludes = queryset_filters['db_excludes']
-
-        # fetch queryset from Players model
-        queryset = Player.objects.prefetch_related(
-            'teams'  # use prefetch_related to minimize db hits.
-        ).all()
-
-        return queryset.filter(**db_filters).exclude(**db_excludes)
 ```
 
 With the use of `drf-url-filters` adding a new filter on a new column is as