xref test suite: remove dbicconf.conf
xref test suite: remove dbicconf.conf

The xref schema does not play nicely with DBIC so we use manually
corrected modules instead of generating them on the fly.

Ensembl/ensembl,james-monkeyshines/ensembl,james-monkeyshines/ensembl,Ensembl/ensembl,Ensembl/ensembl,Ensembl/ensembl,james-monkeyshines/ensembl,james-monkeyshines/ensembl