Remove warning for content files issues (#11073)

src/Servers/IIS/IntegrationTesting.IIS/src/Microsoft.AspNetCore.Server.IntegrationTesting.IIS.csproj

@@ -14,6 +14,13 @@
     <IsPackable>true</IsPackable>
     <IsShippingPackage>false</IsShippingPackage>
     <HasReferenceAssembly>false</HasReferenceAssembly>
+    <!--
+      The assembly 'contentFiles\any\any\x64\aspnetcorev2.dll' is intentionally
+      not inside the 'lib' folder and hence it won't be added as a reference when
+      the package is installed into a project. This suppresses the NuGet warning
+      about this structure
+    -->
+    <NoWarn>$(NoWarn);NU5100</NoWarn>
   </PropertyGroup>
 
   <Import Project="..\..\build\assets.props" />