Remove deprecated logging methods (#6516)

src/Icons/Program.cs

@@ -11,9 +11,8 @@ public class Program
             .ConfigureWebHostDefaults(webBuilder =>
             {
                 webBuilder.UseStartup<Startup>();
-                webBuilder.ConfigureLogging((hostingContext, logging) =>
-                    logging.AddSerilog(hostingContext, (e, globalSettings) => e.Level >= globalSettings.MinLogLevel.IconsSettings.Default));
             })
+            .AddSerilogFileLogging()
             .Build()
             .Run();
     }

src/Icons/Startup.cs

@@ -60,11 +60,8 @@ public class Startup
     public void Configure(
         IApplicationBuilder app,
         IWebHostEnvironment env,
-        IHostApplicationLifetime appLifetime,
         GlobalSettings globalSettings)
     {
-        app.UseSerilog(env, appLifetime, globalSettings);
-
         // Add general security headers
         app.UseMiddleware<SecurityHeadersMiddleware>();