Merge lp:~gustav-hartvigsson/brz/removed-api-doc into lp:brz

[Gustav Hartvigsson]

Drop documentation for removed API API.

[Jelmer Vernooij (jelmer)]

review: Approve

[The Breezy Bot (the-breezy-bot)]

Running landing tests failed
https://ci.breezy-vcs.org/job/brz/job/brz-land/791/

[The Breezy Bot (the-breezy-bot)]

Running landing tests failed
https://ci.breezy-vcs.org/job/brz/job/brz-land/798/

=== modified file 'doc/developers/plugin-api.txt'
--- doc/developers/plugin-api.txt	2020-01-31 17:43:44 +0000
+++ doc/developers/plugin-api.txt	2021-01-09 18:22:13 +0000
@@ -189,19 +189,6 @@
 This is a user-visible docstring so should be prefixed with ``__doc__ =``
 to ensure help works under ``python -OO`` with docstrings stripped.
 
-API version
------------
-
-Plugins can and should declare that they depend on a particular version of
-breezy like so::
-
-    from breezy.api import require_api
-
-    require_api(breezy, (1, 11, 0))
-
-Please see `API versioning <api-versioning.html>`_ for more details on the API
-metadata protocol used by breezy.
-
 Plugin version
 --------------