revert __init__.py imports

bob/pad/face/__init__.py

bob/pad/face/database/__init__.py

bob/pad/face/extractor/__init__.py

bob/pad/face/preprocessor/__init__.py

bob/pad/face/test/data/lbp.hdf5

...pad/face/test/data/real_client001_android_SD_scene01.face

bob/pad/face/test/data/real_client001_android_SD_scene01.mp4

.../test/data/real_client001_android_SD_scene01_ref_feats.h5

bob/pad/face/transformer/__init__.py

bob/pad/face/utils/__init__.py