[bob] Remove namespace declaration within package

bob/ip/binseg/configs/__init__.py

bob/ip/binseg/configs/datasets/__init__.py

bob/ip/binseg/configs/datasets/imagefolder.py

bob/ip/binseg/configs/models/__init__.py

bob/ip/binseg/data/__init__.py

bob/ip/binseg/engine/__init__.py

bob/ip/binseg/modeling/__init__.py

bob/ip/binseg/modeling/backbones/__init__.py

bob/ip/binseg/script/__init__.py

bob/ip/binseg/test/__init__.py

bob/ip/binseg/utils/__init__.py