Remove Classification.seed in favor of creating specific tags.

Total time for vmdbws_provisioning_spec.rb file drops from 19.79s to 14.38s. WAT
Remove Classification.seed in favor of creating specific tags.

Total time for vmdbws_inventory_spec.rb file drops from 42.64s to 38.08s. WAT
Merge pull request #810 from Fryguy/remove_classification_seed

Remove Classification.seed in favor of creating specific tags.