DOCSP-42484 - Remove LINQ2 (#229)

Author: mongoKart

source/faq.txt

@@ -215,11 +215,7 @@ If you receive an ``Unsupported filter ...`` or ``Expression not
 supported ...`` exception message, try the following
 steps:
 
-1. Try configuring the new `LINQ3
-   <https://mongodb.github.io/mongo-csharp-driver/2.17/reference/driver/crud/linq3/>`__
-   provider. The LINQ3 provider contains many fixes and new features
-   over the LINQ2 provider.
-#. Use the `{+analyzer+}
+1. Use the `{+analyzer+}
    <https://www.mongodb.com/docs/mongodb-analyzer/current/>`__ to analyze your
    expressions.
 #. Try to simplify your query where possible.

source/fundamentals/connection/connection-options.txt

@@ -198,13 +198,6 @@ relevant options.
        | **Default**: ``false``
        | **Connection URI Example**: {+not-available+}
 
-   * - **LinqProvider**
-     - | The LINQ provider to use.
-       |
-       | **Data Type**: `LinqProvider <{+new-api-root+}/MongoDB.Driver/MongoDB.Driver.Linq.LinqProvider.html>`__
-       | **Default**: ``LinqProvider.V3``
-       | **Connection URI Example**: {+not-available+}
-
    * - **LoadBalanced**
      - | Specifies whether the driver is connecting to a load balancer. You can set this
        | property to ``true`` only if:

source/fundamentals/linq.txt

@@ -28,6 +28,11 @@ strongly typed collections of objects by using language keywords and operators.
 The {+driver-short+} automatically translates LINQ queries into
 :manual:`aggregation operations </aggregation>`.
 
+.. important:: 
+
+   LINQ3 is the only LINQ provider available in the {+driver-long+}. If you have
+   manually configured your project to use LINQ2, it will not compile.
+
 The examples in this guide use the ``restaurants`` collection
 in the ``sample_restaurants`` database provided in the :atlas:`Atlas sample datasets </sample-data>`.
 To learn how to create a free MongoDB Atlas cluster and load the sample datasets,

source/upgrade.txt

@@ -66,6 +66,9 @@ Version 3.0 Potential Breaking Change
   configuring authentication in the {+driver-short+}, see
   :ref:`Authentication Mechanisms. <csharp-authentication-mechanisms>`
 
+- The LINQ2 provider has been removed from this version of the driver.
+  You must use LINQ3 for all LINQ queries.
+
 .. _csharp-breaking-changes-2.28.0:
 
 Version 2.28.0 Potential Breaking Change