Replace custom cuda_pinned_resource with RMM's pinned_host_memory_resource (#1466)

Removes custom `cuda_pinned_resource` implementation and uses `rmm::mr::pinned_host_memory_resource` directly.

Depends on rapidsai/rmm#2102.

Closes #754.

Authors:
  - Bradley Dice (https://github.com/bdice)
  - Artem M. Chirkin (https://github.com/achirkin)

Approvers:
  - Artem M. Chirkin (https://github.com/achirkin)

URL: #1466

Author: bdice

cpp/bench/ann/src/common/cuda_pinned_resource.hpp

@@ -7,8 +7,8 @@
 #include "../../../../src/neighbors/detail/cagra/utils.hpp"
 #include "../common/ann_types.hpp"
 #include "../common/cuda_huge_page_resource.hpp"
-#include "../common/cuda_pinned_resource.hpp"
 #include "cuvs_ann_bench_utils.h"
+#include <rmm/mr/pinned_host_memory_resource.hpp>
 
 #include <cuvs/distance/distance.hpp>
 #include <cuvs/neighbors/cagra.hpp>
@@ -142,7 +142,7 @@ class cuvs_cagra : public algo<T>, public algo_gpu {
  private:
   // handle_ must go first to make sure it dies last and all memory allocated in pool
   configured_raft_resources handle_{};
-  raft::mr::cuda_pinned_resource mr_pinned_;
+  rmm::mr::pinned_host_memory_resource mr_pinned_;
   raft::mr::cuda_huge_page_resource mr_huge_page_;
   AllocatorType graph_mem_{AllocatorType::kDevice};
   AllocatorType dataset_mem_{AllocatorType::kDevice};