Fixing references

Author: StanleyGoldman

src/GitHub.Api/GitHub.Api.csproj

@@ -29,8 +29,6 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="2.6.1" />
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
-    <PackageReference Include="Octokit.GraphQL" Version="0.1.2-beta" />
     <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
     <PackageReference Include="Octokit.GraphQL" Version="0.1.2-beta" />
   </ItemGroup>