Debmirror: fix dogtag dep's

  * Ubuntu:xenial
    - Drop all old llvm libs, but fetch latest
    - drop metastudent packages:
      'predictor of Gene Ontology terms from protein sequence - data files'

Closes-Bug: PROD-21759 (PROD:21759)

Change-Id: If0b09ba87b8fdcf8d39841fafa48b8185df6c946
1 file changed