Remove unused code.

Author: grokys

src/GitHub.App/Api/ApiClient.cs

@@ -7,17 +7,11 @@
 using System.Reactive.Linq;
 using System.Security.Cryptography;
 using System.Text;
+using GitHub.Extensions;
+using GitHub.Logging;
 using GitHub.Primitives;
 using Octokit;
 using Octokit.Reactive;
-using ReactiveUI;
-using System.Threading.Tasks;
-using System.Reactive.Threading.Tasks;
-using Octokit.Internal;
-using System.Collections.Generic;
-using GitHub.Models;
-using GitHub.Extensions;
-using GitHub.Logging;
 using Serilog;
 
 namespace GitHub.Api
@@ -29,11 +23,6 @@ public partial class ApiClient : IApiClient
         static readonly ILogger log = LogManager.ForContext<ApiClient>();
 
         readonly IObservableGitHubClient gitHubClient;
-        // There are two sets of authorization scopes, old and new:
-        // The old scopes must be used by older versions of Enterprise that don't support the new scopes:
-        readonly string[] oldAuthorizationScopes = { "user", "repo", "gist" };
-        // These new scopes include write:public_key, which allows us to add public SSH keys to an account:
-        readonly string[] newAuthorizationScopes = { "user", "repo", "gist", "write:public_key" };
         readonly static Lazy<string> lazyNote = new Lazy<string>(() => ProductName + " on " + GetMachineNameSafe());
         readonly static Lazy<string> lazyFingerprint = new Lazy<string>(GetFingerprint);
 
@@ -101,42 +90,6 @@ public IObservable<User> GetUser()
             return gitHubClient.User.Current();
         }
 
-        public IObservable<ApplicationAuthorization> GetOrCreateApplicationAuthenticationCode(
-            Func<TwoFactorAuthorizationException, IObservable<TwoFactorChallengeResult>> twoFactorChallengeHander,
-            string authenticationCode = null,
-            bool useOldScopes = false,
-            bool useFingerPrint = true)
-        {
-            var newAuthorization = new NewAuthorization
-            {
-                Scopes = useOldScopes
-                    ? oldAuthorizationScopes
-                    : newAuthorizationScopes,
-                Note = lazyNote.Value,
-                Fingerprint = useFingerPrint ? lazyFingerprint.Value : null
-            };
-
-            Func<TwoFactorAuthorizationException, IObservable<TwoFactorChallengeResult>> dispatchedHandler =
-                ex => Observable.Start(() => twoFactorChallengeHander(ex), RxApp.MainThreadScheduler).Merge();
-
-            var authorizationsClient = gitHubClient.Authorization;
-
-            return string.IsNullOrEmpty(authenticationCode)
-                ? authorizationsClient.CreateAndDeleteExistingApplicationAuthorization(
-                        ClientId,
-                        ClientSecret,
-                        newAuthorization,
-                        dispatchedHandler,
-                        true)
-                :   authorizationsClient.CreateAndDeleteExistingApplicationAuthorization(
-                        ClientId,
-                        ClientSecret,
-                        newAuthorization,
-                        dispatchedHandler,
-                        authenticationCode,
-                        true);
-        }
-
         public IObservable<Organization> GetOrganizations()
         {
             // Organization.GetAllForCurrent doesn't return all of the information we need (we 

src/GitHub.Exports.Reactive/Api/IApiClient.cs

@@ -27,11 +27,6 @@ public interface IApiClient
         /// </summary>
         /// <returns></returns>
         IObservable<Repository> GetRepositoriesForOrganization(string organization);
-        IObservable<ApplicationAuthorization> GetOrCreateApplicationAuthenticationCode(
-            Func<TwoFactorAuthorizationException, IObservable<TwoFactorChallengeResult>> twoFactorChallengeHander,
-            string authenticationCode = null,
-            bool useOldScopes = false,
-            bool useFingerprint = true);
 
         IObservable<string> GetGitIgnoreTemplates();
         IObservable<LicenseMetadata> GetLicenses();