cleanup: remove publisher upload-swagger-draft
cleanup: remove publisher upload-swagger-draft

swagger job, is not used anymore. it was removed in:
https://review.openstack.org/#/c/364076
The publisher is not used any more as well.

Change-Id: I354af582c69aac08a6e4666788001beecbb9c47a

openstack-infra/project-config,openstack-infra/project-config