message: Removed os condition from nuget target (win)
diff: </Target>
  <Target Name="RestorePackages" DependsOnTargets="CheckPrerequisites">
  - <Exec Command="$(RestoreCommand)"
  - Condition="'$(OS)' != 'Windows_NT' And Exists('$(PackagesConfig)')" />
  -
  <Exec Command="$(RestoreCommand)"
  LogStandardErrorAsError="true"
  Condition="'$(OS)' == 'Windows_NT' And Exists('$(PackagesConfig)')" />
  