Obsolete System.Net.NameResolution package reference

[BMagerMT]

Orleans is referencing an old package that is no longer need as it is now part of .net. We are getting complaints about the transient reference to System.Net.NameResolution 4.3.0 from our security team as it is old package that has not been updated in a long time.

Our understanding is this reference could just be removed and Orleans should still be able to build.

[ReubenBond]

Hi @BMagerMT, I believe the package was added to fix some build issues. We can probably remove it now without issue. If you are willing, a PR to remove the package ref would be greatly appreciated