DOCSP-35713- Remove group from QE supported aggregation stages (#5920)

* remove group from QE supported agg stages

* add taxonomy

* add group back to list

* remove ref to deleted section

* clarify group on unencrypted fields

.gitignore

@@ -85,4 +85,4 @@ primer/source/includes/table-linux-kernel-version-production.yaml
 venv
 .vscode
 changelogs/.mongodb-jira.yaml
-source/includes/qe-tutorials/csharp/obj/Debug/
+source/includes/qe-tutorials/csharp/obj/

source/core/queryable-encryption/reference/supported-operations.txt

@@ -4,14 +4,19 @@
 Supported Operations for {+qe+}
 =============================================
 
-.. default-domain:: mongodb
-
 .. contents:: On this page
    :local:
    :backlinks: none
    :depth: 2
    :class: singlecol
 
+.. facet::
+   :name: genre
+   :values: reference
+
+.. meta::
+   :keywords: QE, read operations, write operations
+
 This page documents the specific commands, query operators, update
 operators, aggregation stages, and aggregation expressions supported for
 {+qe+} compatible drivers.
@@ -225,8 +230,7 @@ aggregation pipeline stages:
 - :pipeline:`$collStats`
 - :pipeline:`$count`
 - :pipeline:`$geoNear`
-- :pipeline:`$group` (For usage requirements, see
-  :ref:`qe-group-behavior`)
+- :pipeline:`$group` on unencrypted fields
 - :pipeline:`$indexStats`
 - :pipeline:`$limit`
 - :pipeline:`$lookup` and :pipeline:`$graphLookup` (For usage
@@ -253,25 +257,6 @@ Each supported stage must specify only supported
 :ref:`aggregation expressions
 <qe-supported-aggregation-expressions>`.
 
-.. _qe-group-behavior:
-
-``$group`` Behavior
-~~~~~~~~~~~~~~~~~~~
-
-:pipeline:`$group` has the following behaviors specific to {+qe+}.
-
-``$group`` supports:
-
-- Grouping on encrypted fields.
-- Using :group:`$addToSet` and :group:`$push` accumulators on encrypted
-  fields.
-
-``$group`` does not support:
-
-- Matching on the array returned by  :group:`$addToSet` and :group:`$push`
-  accumulators.
-- Arithmetic accumulators on encrypted fields.
-
 .. _qe-csfle-lookup-graphLookup-behavior:
 
 ``$lookup`` and ``$graphLookup`` Behavior