Hide ListOperatingSystemAccounts in intellisense (#5304)

* Update BrokerOptions.cs

* Update BrokerOptions.cs

Author: ashok672

src/client/Microsoft.Identity.Client/ApiConfig/BrokerOptions.cs

@@ -79,10 +79,11 @@ internal static BrokerOptions CreateFromWindowsOptions(WindowsBrokerOptions winO
         public bool MsaPassthrough { get; set; } = false;
 
         /// <summary>
-        /// Currently supported on Windows, Linux and macOS
-        /// Allows the Windows broker to list Work and School accounts as part of the <see cref="ClientApplicationBase.GetAccountsAsync()"/>
+        /// Currently supported on Windows, Linux and macOS.
+        /// Allows the Windows broker to list MSA, Work and School accounts as part of the <see cref="ClientApplicationBase.GetAccountsAsync()"/>.
         /// Linux and macOS broker will discover accounts as part of the <see cref="ClientApplicationBase.GetAccountsAsync()"/>
-        /// </summary>        
+        /// </summary>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public bool ListOperatingSystemAccounts { get; set; }
 
         internal bool IsBrokerEnabledOnCurrentOs()