diff --git a/python-package/xgboost/testing/updater.py b/python-package/xgboost/testing/updater.py
index 702148e06edc..b92d7a9fa7e3 100644
--- a/python-package/xgboost/testing/updater.py
+++ b/python-package/xgboost/testing/updater.py
@@ -228,7 +228,6 @@ def check_extmem_qdm(
     Xy = xgb.QuantileDMatrix(it)
     booster = xgb.train({"device": device}, Xy, num_boost_round=8)
 
-    # Get cuts from ellpack without CPU-GPU interpolation is not yet supported.
     cut_it = Xy_it.get_quantile_cut()
     cut = Xy.get_quantile_cut()
     np.testing.assert_allclose(cut_it[0], cut[0])