Undo some changes introduced by isort

We don't run isort in check/format-incremental. I didn't need to run it
manually in the previous commit.

Author: mhucka

src/openfermion/ops/representations/doci_hamiltonian_test.py

@@ -18,17 +18,16 @@
 import numpy
 import pytest
 
-from openfermion import InteractionOperator, get_fermion_operator, normal_ordered
+from openfermion.config import EQ_TOLERANCE
 from openfermion.chem.molecular_data import MolecularData
-from openfermion.config import DATA_DIRECTORY, EQ_TOLERANCE
+from openfermion.config import DATA_DIRECTORY
+from openfermion.transforms import jordan_wigner
 from openfermion.linalg import get_sparse_operator
 from openfermion.ops.representations.doci_hamiltonian import (
     DOCIHamiltonian,
     get_doci_from_integrals,
-    get_projected_integrals_from_doci,
-    get_tensors_from_doci,
 )
-from openfermion.transforms import jordan_wigner
+from openfermion import get_fermion_operator, InteractionOperator
 
 numpy.set_printoptions(linewidth=2000, threshold=sys.maxsize)
 

src/openfermion/transforms/opconversions/remove_symmetry_qubits_test.py

@@ -18,15 +18,16 @@
 
 import pytest
 
-from openfermion.chem import MolecularData
 from openfermion.hamiltonians import fermi_hubbard
-from openfermion.linalg import eigenspectrum
+from openfermion.chem import MolecularData
+from openfermion.transforms.opconversions import get_fermion_operator
 from openfermion.linalg.sparse_tools import (
     get_sparse_operator,
     jw_get_ground_state_at_particle_number,
 )
+from openfermion.linalg import eigenspectrum
 from openfermion.ops.operators import FermionOperator
-from openfermion.transforms.opconversions import get_fermion_operator
+
 from openfermion.transforms.opconversions.remove_symmetry_qubits import (
     symmetry_conserving_bravyi_kitaev,
 )