Normal removal procedure:
- Remove the plugin completely from core.
- Document it in the webservices upgrade.txt file.
- Add a core upgrade step to proceed to remove any configuration
if the plugin has not been re-installed manually.
Plus:
- Remove a few remaining uses in the hub/sites registration scripts,
that were moved from xmlrpc to hand.made rest calls by MDL-31436
(Moodle 3.4.1 and up) and never removed then.
- Remove the php-xmlrpc extension as a recommendation in composer.
- Remove "xmlrpc" from various comments, trivial cleanup.
Note:
- While working on this MDL-76078 has been created about to
fix a serious design problem detected (it does not affect
functionality). That's out from this issue scope.
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