chore: remove xdist_group marker

Author: cpcloud

numba_cuda/numba/cuda/tests/cudadrv/test_deallocations.py

@@ -5,8 +5,6 @@
 
 import numpy as np
 
-import pytest
-
 from numba import cuda
 from numba.cuda.testing import (
     unittest,
@@ -17,8 +15,6 @@
 from numba.cuda.tests.support import captured_stderr
 from numba.cuda.core import config
 
-pytestmark = pytest.mark.xdist_group("deallocations")
-
 
 @skip_on_cudasim("not supported on CUDASIM")
 class TestDeallocation(CUDATestCase):