Remove logs.openstack.org secrets
Remove logs.openstack.org secrets

These secrets were related to jobs uploading the the static
logs.openstack.org server, which is not longer used.  Remove them.

Story: #2006598
Task: #37735
Change-Id: Iaa7fc45c25df57a9ee70088ace17f228884160e4

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