remove extraneous contents directives

Author: schmalliso

source/meta/aggregation-quick-reference.txt

@@ -201,12 +201,6 @@ literals.
 Operator Expressions
 --------------------
 
-.. contents:: In this section
-   :local:
-   :backlinks: none
-   :depth: 1
-   :class: twocols
-
 .. include:: /includes/intro-aggregation-operator-expressions.rst
 
 .. _agg-quick-ref-operator-arithmetic:

source/reference/command/findAndModify.txt

@@ -496,12 +496,6 @@ Write Concerns and Transactions
 Examples
 --------
 
-.. contents:: In this section
-   :local:
-   :backlinks: none
-   :depth: 1
-   :class: twocols
-
 Update and Return
 ~~~~~~~~~~~~~~~~~
 

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

@@ -423,12 +423,6 @@ Write Concerns and Transactions
 Examples
 --------
 
-.. contents:: In this section
-   :local:
-   :backlinks: none
-   :depth: 1
-   :class: twocols
-
 Update and Return
 ~~~~~~~~~~~~~~~~~
 

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

@@ -321,12 +321,6 @@ Write Concerns and Transactions
 Examples
 ----------
 
-.. contents:: In this section
-   :local:
-   :backlinks: none
-   :depth: 1
-   :class: twocols
-
 .. _findOneAndUpdate-example-replace-document:
 
 Update A Document

source/reference/operator/aggregation.txt

@@ -22,12 +22,6 @@ Aggregation Pipeline Operators
 Expression Operators
 --------------------
 
-.. contents:: In this section
-   :local:
-   :backlinks: none
-   :depth: 1
-   :class: twocols
-
 These expression operators are available to construct :ref:`expressions
 <aggregation-expressions>` for use in the :doc:`aggregation pipeline
 stages </reference/operator/aggregation-pipeline>`.