Remove more cimports

Author: mdboom

cuda_core/cuda/core/system/device.pyx

@@ -11,7 +11,7 @@ from typing import Iterable
 from cuda.bindings import _nvml as nvml
 
 from ._nvml_context import validate
-from .utils cimport unpack_bitmask
+from .utils import unpack_bitmask
 
 
 class DeviceArchitecture:

cuda_core/cuda/core/system/utils.pxd

@@ -6,7 +6,7 @@ from cpython cimport array
 from libc.stdint cimport uint64_t
 
 
-cpdef list[int] unpack_bitmask(x: list[int] | array.array):
+cdef list[int] unpack_bitmask(x: list[int] | array.array):
     """
     Unpack a list of integers containing bitmasks.