cleanup

src/atomic_features_package/__init__.py

src/atomic_features_package/atomic_properties/__init__.py

src/atomic_features_package/datasets/fhi_aims/__init__.py

...package/datasets/fhi_aims/no_spin_hse06_really_tight.json

..._package/datasets/fhi_aims/no_spin_pbe0_really_tight.json

...s_package/datasets/fhi_aims/no_spin_pbe_really_tight.json

...ackage/datasets/fhi_aims/no_spin_pbesol_really_tight.json

...ackage/datasets/fhi_aims/no_spin_pw-lda_really_tight.json

...ackage/datasets/fhi_aims/no_spin_revpbe_really_tight.json

...es_package/datasets/fhi_aims/spin_hse06_really_tight.json

...res_package/datasets/fhi_aims/spin_pbe0_really_tight.json

...ures_package/datasets/fhi_aims/spin_pbe_really_tight.json

...s_package/datasets/fhi_aims/spin_pbesol_really_tight.json

...s_package/datasets/fhi_aims/spin_pw-lda_really_tight.json

...s_package/datasets/fhi_aims/spin_revpbe_really_tight.json

src/atomic_features_package/datasets/lda2015/__init__.py

src/atomic_features_package/datasets/lda2015/data.json

src/atomic_features_package/datasets/matminer/__init__.py

src/atomic_features_package/datasets/matminer/data.json

src/atomic_features_package/datasets/pymatgen/__init__.py