Cleanup some {lang} manual jobs

A couple of smaller changes:
For 'openstack-operations-guide-{lang}:
* The job was listed as part of openstack-manuals but belongs to
  operations-guide, place it correctly in projects.yaml.
* The job used the non-existing openstack-ops repository instead of
  operations-guide.
* Move the job from manuals.yaml to manuals-jobs.yaml, thus deleting
  file manuals.yaml.
* Small cleanups: Remove github-org, set node via projects.yaml.
For 'openstack-misc-guides-{lang}:
* Use upload-to-docs-site macro. It's slightly more generic but will
  work fine for this job like it does for the other {lang} jobs.

Change-Id: I925dae61be182ad9407e235102e0089e877365af
Merge "Cleanup some {lang} manual jobs"