Revert "Use socketpair to implement Process.Start redirection" (#47461)#47644

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Anipik merged 2 commits intodotnet:release/5.0from

eiriktsarpalis:revert-processsocketpair-5.0

Feb 10, 2021

Commits on Jan 29, 2021

Revert "Use socketpair to implement Process.Start redirection" (#47461)

eiriktsarpalis
and
stephentoub
committed

Commits on Feb 1, 2021

Add test validating against regression in #46469 (#47643)
eiriktsarpalis
committed