Merge branch 'cm/drop-xunsetenv'

Drop a helper function that has never been used since its addition. * cm/drop-xunsetenv: wrapper: remove xunsetenv()

Junio C Hamano committed Oct 29, 2021 at 15:43 UTC 7b3fd03e6acbc990b4dd540079368d4e85cc7f1b

No changes.