rm hip.h files

src/tree/constraints.hip.h

@@ -1,8 +0,0 @@
-/*!
- * Copyright 2019 XGBoost contributors
- *
- * \file Various constraints used in GPU_Hist.
- */
-#pragma once
-
-#include "constraints.cuh"

src/tree/gpu_hist/evaluate_splits.hip.h

@@ -1,6 +0,0 @@
-/*!
- * Copyright 2020 by XGBoost Contributors
- */
-#pragma once
-
-#include "evaluate_splits.cuh"

src/tree/gpu_hist/expand_entry.hip.h

@@ -1,6 +0,0 @@
-/*!
- * Copyright 2020 by XGBoost Contributors
- */
-#pragma once
-
-#include "expand_entry.cuh"

src/tree/gpu_hist/feature_groups.hip.h

@@ -1,7 +0,0 @@
-/*!
- * Copyright 2020 by XGBoost Contributors
- */
-
-#pragma once
-
-#include "feature_groups.cuh"

src/tree/gpu_hist/gradient_based_sampler.hip.h

@@ -1,6 +0,0 @@
-/*!
- * Copyright 2019 by XGBoost Contributors
- */
-#pragma once
-
-#include "gradient_based_sampler.cuh"

src/tree/gpu_hist/histogram.hip.h

@@ -1,6 +0,0 @@
-/*!
- * Copyright 2020-2021 by XGBoost Contributors
- */
-#pragma once
-
-#include "histogram.cuh"

src/tree/gpu_hist/row_partitioner.hip.h

@@ -1,6 +0,0 @@
-/*!
- * Copyright 2017-2022 XGBoost contributors
- */
-#pragma once
-
-#include "row_partitioner.cuh"

src/tree/updater_gpu_common.hip.h

@@ -1,6 +0,0 @@
-/*!
- * Copyright 2017-2019 XGBoost contributors
- */
-#pragma once
-
-#include "updater_gpu_common.cuh"