Revert "Revert "Removing old OAuth""

This reverts commit 491a9ced86dfa72a30cd87ab4e5ffad98108803e.
Revert "Revert "Complete Removal of oauth2""

This reverts commit 2d1ff426997672555ed8b280061d8c3ab868a560.
Revert "Revert "Update README.md""

This reverts commit 3afcad58954b3e982013b612b624e78e3c4af529.