Remove unused imports

Author: Diptorup Deb

numba_dpex/core/types/array_type.py

@@ -3,8 +3,6 @@
 # SPDX-License-Identifier: Apache-2.0
 
 import numpy as np
-from numba.core import types
-from numba.core.datamodel.models import StructModel
 from numba.core.types.npytypes import Array