Fix xmldoc typo, add a todo

src/IdentityServer/IdentityServerTools.cs

@@ -19,7 +19,7 @@ namespace Duende.IdentityServer;
 /// </summary>
 public class IdentityServerTools
 {
-    internal readonly IServiceProvider ServiceProvider;
+    internal readonly IServiceProvider ServiceProvider; // TODO - consider removing this, as it is not used.
     internal readonly IIssuerNameService IssuerNameService;
     private readonly ITokenCreationService _tokenCreation;
     private readonly ISystemClock _clock;

src/IdentityServer/Services/Default/DefaultBackChannelLogoutService.cs

@@ -30,7 +30,7 @@ public class DefaultBackChannelLogoutService : IBackChannelLogoutService
     protected ISystemClock Clock { get; }
 
     /// <summary>
-    /// The IdentityServerTools used to create and the JWT.
+    /// The IdentityServerTools used to create the JWT.
     /// </summary>
     protected IdentityServerTools Tools { get; }