Same as in T202085. There's a patch IIRC to allow bureaucrats to do so on all wikis.

Allowing wikidata-staff to do so is not covered by any pending job.

Cfr. https://gerrit.wikimedia.org/r/#/c/operations/mediawiki-config/+/450450/

Bureaucrats across Wikimedia sites are now allowed to remove interface-admin. Only point 2 of the request is pending.

Change 454083 had a related patch set uploaded (by Rxy; owner: Rxy):
[operations/mediawiki-config@master] Allow add or remove interface-admin group by wikidata-staff

https://gerrit.wikimedia.org/r/454083

I scheduled for deploy in Monday, August 20 23:00–00:00 UTC

Change 454083 merged by jenkins-bot:
[operations/mediawiki-config@master] Allow add or remove interface-admin group by wikidata-staff

https://gerrit.wikimedia.org/r/454083

Mentioned in SAL (#wikimedia-operations) [2018-08-20T23:08:45Z] <twentyafterfour@deploy1001> Synchronized wmf-config/InitialiseSettings.php: SWAT https://gerrit.wikimedia.org/r/#/c/operations/mediawiki-config/+/454083/ Phab Task: T202065 (duration: 00m 51s)

This is not my intention: "Allow add or remove interface-admin group by wikidata-staff" should only apply to their own account, not to arbitary accounts. However I'm not certain whether status quo is bad.

In T202065#4517392, @Bugreporter wrote:

This is not my intention: "Allow add or remove interface-admin group by wikidata-staff" should only apply to their own account, not to arbitary accounts. However I'm not certain whether status quo is bad.

Oh, I did overlook that .. Should I fix that?

I'm fine either way. I don't think the staff group needs the right but it also doesn't hurt anyone.

Well, if the discussion and policy was for the permission to be made avalaible to wikidata-staff for their own account only ($wgGroupsAddToSelf/GroupsRemoveFromSelf) it should be amended, although we can trust wikidata-staff not to add/remove the permission from non-self in the meanwhile :-)

Change 454330 had a related patch set uploaded (by MarcoAurelio; owner: MarcoAurelio):
[operations/mediawiki-config@master] Switch 'wikidata-staff' add/remove 'interface-admin' for own account

https://gerrit.wikimedia.org/r/454330

Change 454330 merged by jenkins-bot:
[operations/mediawiki-config@master] Switch 'wikidata-staff' add/remove 'interface-admin' for own account

https://gerrit.wikimedia.org/r/454330

Mentioned in SAL (#wikimedia-operations) [2018-08-23T11:35:17Z] <addshore@deploy1001> Synchronized wmf-config/InitialiseSettings.php: T202065 [[gerrit:454330|Switch 'wikidata-staff' add/remove 'interface-admin' for own account]] (duration: 00m 55s)

This is now fixed.