Fix Tsl256x (#1029)

Author: networkfusion

devices/Tsl256x/Tsl256x.nfproj

@@ -64,7 +64,6 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="*.cs" />
     <None Include="*.md" />
   </ItemGroup>
   <Import Project="$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets" Condition="Exists('$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets')" />
@@ -83,4 +82,4 @@
     <Error Condition="!Exists('packages\Nerdbank.GitVersioning.3.6.133\build\Nerdbank.GitVersioning.targets')" Text="$([System.String]::Format('$(ErrorText)', 'packages\Nerdbank.GitVersioning.3.6.133\build\Nerdbank.GitVersioning.targets'))" />
   </Target>
   <Import Project="packages\Nerdbank.GitVersioning.3.6.133\build\Nerdbank.GitVersioning.targets" Condition="Exists('packages\Nerdbank.GitVersioning.3.6.133\build\Nerdbank.GitVersioning.targets')" />
-</Project>
+</Project>