DOCS-12790 - Clean up refs on release notes page.

Author: jdestefano-mongo

source/release-notes.txt

@@ -27,8 +27,6 @@ MongoDB Connector for Spark `2.4.1`_
   ``spark.read.format("com.mongodb.spark.sql")`` and
   ``spark.read.format("com.mongodb.spark.sql.DefaultSource")``.
 
-.. _2.4.1: https://github.com/mongodb/mongo-spark/compare/2.4.0...r2.4.1
-
 MongoDB Connector for Spark `2.4.0`_
 ------------------------------------
 
@@ -40,4 +38,5 @@ MongoDB Connector for Spark `2.4.0`_
 - Added Scala 2.12 support.
 - Fixed ``MongoSpark.toDF()`` to use the provided ``MongoConnector``.
 
-.. _2.4.0: https://github.com/mongodb/mongo-spark/compare/2.3.x...r2.4.0
+.. _2.4.1: https://github.com/mongodb/mongo-spark/compare/2.4.0...r2.4.1
+.. _2.4.0: https://github.com/mongodb/mongo-spark/compare/2.3.x...r2.4.0