remove dependency on sample

Author: DeagleGross

src/Http/samples/MinimalSampleOwin/MinimalSampleOwin.csproj

@@ -17,8 +17,4 @@
     <Reference Include="Microsoft.AspNetCore.Owin" />
   </ItemGroup>
 
-  <ItemGroup>
-    <ProjectReference Include="$(RepoRoot)/src/Http/Http.Extensions/gen/Microsoft.AspNetCore.Http.RequestDelegateGenerator.csproj" OutputItemType="Analyzer" />
-  </ItemGroup>
-
 </Project>