remove GUID link (#348) (#349)

(cherry picked from commit 34f8662)

Co-authored-by: Jordan Smith <[email protected]>

Author: github-actions[bot]

source/fundamentals/serialization/guid-serialization.txt

@@ -222,7 +222,6 @@ To learn more about any of the methods or types discussed in this
 guide, see the following API documentation:
 
 - `BsonBinaryData <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.BsonBinaryData.html>`__
-- `GuidRepresentationMode <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.GuidRepresentationMode.html>`__
 - `BsonGuidRepresentation <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.Serialization.Attributes.BsonGuidRepresentationAttribute.html>`__
 - `GuidSerializer <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.Serialization.Serializers.GuidSerializer.html>`__
 - `ObjectSerializer <{+new-api-root+}/MongoDB.Bson/MongoDB.Bson.Serialization.Serializers.ObjectSerializer.html>`__