remove Newtonsoft.Json nuget from GraphQL.Client

Author: rose-a

src/GraphQL.Client/GraphQL.Client.csproj

@@ -25,7 +25,6 @@
 
 
 	<ItemGroup>
-		<PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
 		<PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.0" PrivateAssets="All" />
 	</ItemGroup>