Remove deprecated nexus auth method

Author: AlexDickerson

Wabbajack.CLI/VerbRegistration.cs

@@ -45,8 +45,6 @@ public static void AddCLIVerbs(this IServiceCollection services) {
 services.AddSingleton<MirrorFile>();
 CommandLineBuilder.RegisterCommand<ModlistReport>(ModlistReport.Definition, c => ((ModlistReport)c).Run);
 services.AddSingleton<ModlistReport>();
-CommandLineBuilder.RegisterCommand<SetNexusApiKey>(SetNexusApiKey.Definition, c => ((SetNexusApiKey)c).Run);
-services.AddSingleton<SetNexusApiKey>();
 CommandLineBuilder.RegisterCommand<SteamDownloadFile>(SteamDownloadFile.Definition, c => ((SteamDownloadFile)c).Run);
 services.AddSingleton<SteamDownloadFile>();
 CommandLineBuilder.RegisterCommand<SteamDumpAppInfo>(SteamDumpAppInfo.Definition, c => ((SteamDumpAppInfo)c).Run);