Revert "Remove unnecessary HTTP response headers"

This reverts commit 63505706988ab84391ae40705b287be23761de1d.

aspnet/src/Application.cs

@@ -23,8 +23,6 @@ namespace Benchmarks.AspNet
 
         private void Start()
         {
-            // Remove X-AspNetMvc-Version HTTP response header
-            MvcHandler.DisableMvcResponseHeader = true;
             Routes();
             Views();
         }

aspnet/src/Web.config

@@ -31,8 +31,6 @@
     <add key="webpages:Enabled" value="false" />
   </appSettings>
   <system.web>
-    <!-- Remove X-AspNet-Version HTTP response header -->
-    <httpRuntime enableVersionHeader="false" />
     <!-- Show errors -->
     <customErrors mode="Off"/>
   </system.web>

installer.ps1

@@ -26,9 +26,6 @@ appcmd set config -section:system.webServer/httpErrors -errorMode:Detailed | Out
 # Disable logging
 appcmd set config -section:system.webServer/httpLogging -dontLog:True | Out-Null
 
-# Remove unnecessary X-Powered-By HTTP response header
-appcmd set config -section:system.webServer/httpProtocol /-"customHeaders.[name='X-Powered-By']" | Out-Null
-
 # URL Rewrite
 $rewrite_url = "http://download.microsoft.com/download/6/7/D/67D80164-7DD0-48AF-86E3-DE7A182D6815/rewrite_2.0_rtw_x64.msi"
 $rewrite_local = "$workdir\rewrite_2.0_rtw_x64.msi"