Remove the X.509 certificate from the Mvc.Server sample

samples/Mvc.Server/Mvc.Server.csproj

@@ -6,10 +6,6 @@
     <TypeScriptEnabled>false</TypeScriptEnabled>
   </PropertyGroup>
 
-  <ItemGroup>
-    <EmbeddedResource Include="Certificate.pfx" />
-  </ItemGroup>
-
   <ItemGroup>
     <ProjectReference Include="..\..\src\OpenIddict.AspNetCore\OpenIddict.AspNetCore.csproj" />
     <ProjectReference Include="..\..\src\OpenIddict.EntityFrameworkCore\OpenIddict.EntityFrameworkCore.csproj" />