cleanup unnecessary dependencies in AspNetCore SDK (#2253)

NETCORE/src/Microsoft.ApplicationInsights.AspNetCore/Microsoft.ApplicationInsights.AspNetCore.csproj

@@ -35,11 +35,6 @@
     
     <PackageReference Include="Microsoft.AspNetCore.Hosting" Version="2.1.1" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="2.1.0" />
-    <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="5.0.0" />
-  </ItemGroup>
-
-  <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0' ">
-    <PackageReference Include="System.Net.NameResolution" Version="4.3.0" />
   </ItemGroup>
 
   <ItemGroup>