Fix errors in codeowners file (#8714)

Author: gewarren

.github/CODEOWNERS

@@ -24,16 +24,16 @@
 /xml/Microsoft.VisualBasic*/ @cston @333fred
 /xml/System.Activities*/ @dotnet/docs
 /xml/System.AddIn*/ @dotnet/docs
-/xml/System.ComponentModel.DataAnnotations*/ @lajones @ajcvickers
-/xml/System.Data*/ @ajcvickers @davoudeshtehari @david-engel @JRahnama
+/xml/System.ComponentModel.DataAnnotations*/ @ajcvickers
+/xml/System.Data*/ @ajcvickers @david-engel @JRahnama
 /xml/System.Data.Odbc/ @ajcvickers
 /xml/System.Data.OleDb/ @ajcvickers
-/xml/System.Data.SqlClient/ @davoudeshtehari @david-engel @JRahnama
+/xml/System.Data.SqlClient/ @david-engel @JRahnama
 /xml/System.Deployment*/ @dotnet/docs
 /xml/System.Device*/ @dotnet/docs
 /xml/System.Dynamic*/ @dotnet/docs
 /xml/System.EnterpriseServices*/ @dotnet/docs
-/xml/System.IO.Pipelines*/ @davidfowl @halter73 @jkotalik
+/xml/System.IO.Pipelines*/ @halter73 @jkotalik
 /xml/System.IdentityModel*/ @dotnet/docs
 /xml/System.Json*/ @dotnet/docs
 /xml/System.Linq.Expressions*/ @cston @333fred