Remove TokenType from auth result metadata (#5031)

Do not expose TelemetryTokenType

Author: bgavrilMS

src/client/Microsoft.Identity.Client/AuthenticationResultMetadata.cs

@@ -81,7 +81,7 @@ public AuthenticationResultMetadata(TokenSource tokenSource)
         /// Represents the token type used for client telemetry only.
         /// It is separate from the other token types as it is set locally rather than coming from the server.
         /// </summary>
-        public int TelemetryTokenType { get; set; }
+        internal int TelemetryTokenType { get; set; }
 
         /// <summary>
         /// Time, in microseconds, spent in the token creation of the extended token.

src/client/Microsoft.Identity.Client/PublicApi/net462/PublicAPI.Unshipped.txt

@@ -1 +0,0 @@
-Microsoft.Identity.Client.AuthenticationResultMetadata.TelemetryTokenType.get -> int