Remove deprecated databases

bob/bio/vein/config/database/fv3d.py

bob/bio/vein/config/database/protocol_fv3d/central.py

bob/bio/vein/config/database/protocol_fv3d/left.py

bob/bio/vein/config/database/protocol_fv3d/right.py

bob/bio/vein/config/database/protocol_fv3d/stitched.py

bob/bio/vein/config/database/protocol_putvein/palm_lr_1.py

bob/bio/vein/config/database/protocol_putvein/palm_lr_4.py

bob/bio/vein/config/database/protocol_putvein/wrist_lr_1.py

bob/bio/vein/config/database/protocol_putvein/wrist_lr_4.py

.../vein/config/database/protocol_verafinger/cropped_full.py

...o/vein/config/database/protocol_verafinger/cropped_nom.py

bob/bio/vein/config/database/protocol_verafinger/full.py

bob/bio/vein/config/database/protocol_verafinger/nom.py

bob/bio/vein/config/database/putvein.py

bob/bio/vein/config/database/verafinger.py

bob/bio/vein/config/maximum_curvature.py

bob/bio/vein/database/fv3d.py

bob/bio/vein/database/putvein.py

bob/bio/vein/database/verafinger.py

bob/bio/vein/script/validate.py