Fix inclusive scan for large sizes (#6234)

python-package/xgboost/core.py

@@ -870,9 +870,6 @@ class DeviceQuantileDMatrix(DMatrix):
     You can construct DeviceQuantileDMatrix from cupy/cudf/dlpack.
 
     .. versionadded:: 1.1.0
-
-    Known limitation:
-    The data size (rows * cols) can not exceed 2 ** 31 - 1000
     """
 
     def __init__(self, data, label=None, weight=None,  # pylint: disable=W0231

python-package/xgboost/dask.py

@@ -500,10 +500,6 @@ class DaskDeviceQuantileDMatrix(DaskDMatrix):
     max_bin: Number of bins for histogram construction.
 
 
-    Know issue:
-    The size of each chunk (rows * cols for a single dask chunk/partition) can
-    not exceed 2 ** 31 - 1000
-
     '''
     def __init__(self, client,
                  data,