(DOCS-11777): aggregation explain plans have configurable verbosity

Author: nlarew

source/includes/apiargs-method-db.collection.explain-param.yaml

@@ -11,9 +11,6 @@ description: |
   :method:`cursor.explain()`, MongoDB interprets ``true`` as
   ``"allPlansExecution"`` and ``false`` as ``"queryPlanner"``.
   
-  :method:`aggregate() <db.collection.aggregate()>` ignores the verbosity
-  parameter and executes in ``queryPlanner`` mode.
-  
   For more information on the modes, see
   :ref:`explain-method-verbosity`.
 interface: method

source/reference/method/db.collection.explain.txt

@@ -64,9 +64,6 @@ Verbosity Modes
 The behavior of :method:`db.collection.explain()` and the amount of
 information returned depend on the ``verbosity`` mode.
 
-:method:`~db.collection.aggregate()` ignores the verbosity 
-parameter and executes in ``queryPlanner`` mode.
-
 .. |explain| replace:: :method:`db.collection.explain()`
 .. |operation| replace:: method