Update known-issues-for-sql-server-machine-learning-services.md

Author: itechedit

docs/advanced-analytics/known-issues-for-sql-server-machine-learning-services.md

@@ -24,7 +24,7 @@ The information here applies to all of the following, unless specifically indica
 
 * SQL Server 2016
 
-  - SQL Server R Services (In-Database)
+  - R Services (In-Database)
   - Microsoft R Server (Standalone)
 
 * SQL Server 2017
@@ -191,8 +191,6 @@ You cannot use in an R script the following types of query results:
 
 When you use the rxDataStep function to write results to a table, using the *varsToKeep* and *varsToDrop* is a handy way of specifying the columns to include or exclude as part of the operation. Currently, these arguments are not supported for SQL Server data sources.
 
-This limitation will be removed in a later release.
-
 ### Limited support for SQL data types in `sp_execute_external_script`
 
 Not all data types that are supported in SQL can be used in R. As a workaround, consider casting the unsupported data type to a supported data type before passing the data to sp_execute_external_script.