removed local nstack ref

Terminal.Gui/Terminal.Gui.csproj

@@ -23,7 +23,7 @@
   <!-- Uncomment the RestoreSources element to have dotnet restore pull NStack from a local dir for testing -->
   <PropertyGroup>
     <!-- See https://stackoverflow.com/a/44463578/297526 -->
-    <RestoreSources>$(RestoreSources);..\..\NStack\NStack\bin\Debug;https://api.nuget.org/v3/index.json</RestoreSources>
+    <!--<RestoreSources>$(RestoreSources);..\..\NStack\NStack\bin\Debug;https://api.nuget.org/v3/index.json</RestoreSources>-->
   </PropertyGroup>
   <!-- API Documentation -->
   <ItemGroup>