From a96e1412709e7dfb6623c97299fa51364089ab76 Mon Sep 17 00:00:00 2001
From: Nghia Truong <nghiat@nvidia.com>
Date: Wed, 13 Sep 2023 14:09:09 -0700
Subject: [PATCH] Get rid of `compaction_hash` and sentinel values

---
 .../stream_compaction_common.cuh              | 22 -------------------
 1 file changed, 22 deletions(-)

diff --git a/cpp/src/stream_compaction/stream_compaction_common.cuh b/cpp/src/stream_compaction/stream_compaction_common.cuh
index 4779cd990fd..839672d6a56 100644
--- a/cpp/src/stream_compaction/stream_compaction_common.cuh
+++ b/cpp/src/stream_compaction/stream_compaction_common.cuh
@@ -29,28 +29,6 @@
 namespace cudf {
 namespace detail {
 
-namespace experimental {
-
-/**
- * @brief Device callable to hash a given row.
- */
-template <typename RowHash>
-class compaction_hash {
- public:
-  compaction_hash(RowHash row_hasher) : _hash{row_hasher} {}
-
-  __device__ inline auto operator()(size_type i) const noexcept
-  {
-    auto hash = _hash(i);
-    return (hash == COMPACTION_EMPTY_KEY_SENTINEL) ? (hash - 1) : hash;
-  }
-
- private:
-  RowHash _hash;
-};
-
-}  // namespace experimental
-
 /**
  * @brief Device functor to determine if a row is valid.
  */