Technically a regression in [0] since switching the pivot between
the "Median Point" and "Active Element" would previously use the
same orientation with a single face selected.
However the same issue existed when multiple faces were selected so
changing the pivot type can still change the orientation in some
situations.
Restore the previous behavior by removing logic to pick the "best"
tangent when a single face is selected.
[0]: c7104f5392