Pete Bacon Darwin 4a9f7daf37 docs: remove unused "docregions" (#40479)
This commit removes all the docregion tags in examples that are not
being referenced in any doc.

PR Close #40479
2021-01-20 16:12:15 -08:00
..
2017-06-21 16:21:20 -07:00
2017-06-21 16:21:20 -07:00