remove the unnecessary import
@@ -24,7 +24,6 @@ import copy
import numpy as np
from qiskit import compile as q_compile
from qiskit.providers import BaseBackend, JobStatus, JobError
-from qiskit.providers.ibmq.ibmq_provider import QE_URL
from qiskit_aqua.aqua_error import AquaError
from qiskit_aqua.utils import summarize_circuits
