Followup 2613: remove services/iam project

[khos2ow]

Following up after #2613 services/iam project is obsolete and has been disabled since ba84808, and technically it should be removed. This will be discussed here on and on the ML to see if there's anyone wants to revive/maintain this.

[yadvr]

@khos2ow feel free to send a PR to master

[khos2ow]

sure.