Remove link to missing packages.config

Author: jcansdale

src/GitHub.VisualStudio/GitHub.VisualStudio.csproj

@@ -183,9 +183,6 @@
       <CustomToolNamespace>GitHub.VisualStudio.Settings</CustomToolNamespace>
       <LastGenOutput>PackageSettingsGen.cs</LastGenOutput>
     </Content>
-    <None Include="packages.config">
-      <SubType>Designer</SubType>
-    </None>
     <None Include="..\common\settings.json">
       <Link>Properties\settings.json</Link>
     </None>