message: examples/xpu: Remove redundant exception raising
  There were not enough parameters for CalledProcessError. Moreover, this
  exception never raises upon calling subprocess.Popen, only check_call
  and check_output do.
diff: @@ -112,18 +112,14 @@ cmd = [executable] + unknown
  print("Using host name: ", host_name)
  print("Attempting to access executable at: ", executable)
  -try:
  p = subprocess.Popen(cmd, stdout=subprocess.PIPE, env=test_env, cwd=test_dir)
  out, err = p.communicate()
  print(out)
  if p.returncode:
  - raise subprocess.CalledProcessError('Workload returned non-zero error code')
  + print("Workload returned non-zero error code: ", p.returncode)
  + sys.exit(p.returncode)
  if args.res_image and args.ref_image:
  if not compare_images(os.path.join(test_dir, args.res_image), os.path.join(test_dir, args.ref_image), args.image_cmp_th):
  sys.exit(-1)
  else:
  sys.exit(0)
  -except subprocess.CalledProcessError as e:
  - print("Return code is ", p.returncode)
  - print(e.message)
  - sys.exit(p.returncode)
  