Revert "make CSV downloads respect pagination"

This reverts commit a8ad4f9.

Ref: #2847

lib/active_admin/resource_controller/data_access.rb

@@ -267,18 +267,23 @@ def current_scope
       end
 
       def apply_pagination(chain)
-        page_method = Kaminari.config.page_method_name
-        page_param  = params[Kaminari.config.param_name]
+        page_method_name = Kaminari.config.page_method_name
+        page = params[Kaminari.config.param_name]
 
-        chain.send(page_method, page_param).per(per_page)
+        chain.send(page_method_name, page).per(per_page)
       end
 
       def per_page
+        return max_csv_records if request.format == 'text/csv'
         return max_per_page if active_admin_config.paginate == false
 
         @per_page || active_admin_config.per_page
       end
 
+      def max_csv_records
+        10_000
+      end
+
       def max_per_page
         10_000
       end