Remove deprecated logging methods (#6516)

src/Events/Startup.cs

@@ -90,11 +90,8 @@ 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>();