Revise configuration rename notes in java.yml (#9334)

Remove broken link in old release notes

Author: weshaggard

_data/releases/2021-05/java.yml

@@ -79,7 +79,7 @@ entries:
     ##### Configuration Renames
     * Renamed data source name "cosmos.items" to "cosmos.oltp".
     * Renamed data source name "cosmos.changeFeed" to "cosmos.oltp.changeFeed".
-    * Configuration renamed. See [Configuration-Reference](https://aka.ms/azure-cosmos-spark-3-config) for more details.
+    * Configuration renamed. 
 
     ##### Key Bug Fixes
     * Added validation for all config-settings with a name starting with "spark.cosmos."