Remove topology header (#2357)

Remove the header file `topology.cuh` which is no longer used.

Authors:
  - Chuck Hastings (https://github.com/ChuckHastings)

Approvers:
  - Seunghwa Kang (https://github.com/seunghwak)
  - Rick Ratzel (https://github.com/rlratzel)

URL: #2357

cpp/src/components/connectivity.cu

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2021, NVIDIA CORPORATION.
+ * Copyright (c) 2019-2022, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,17 +17,17 @@
 #include "scc_matrix.cuh"
 #include "weak_cc.cuh"
 
-#include <thrust/sequence.h>
+#include <utilities/graph_utils.cuh>
 
-#include <cstdint>
 #include <cugraph/algorithms.hpp>
 #include <cugraph/legacy/graph.hpp>
 #include <cugraph/utilities/error.hpp>
+
+#include <thrust/sequence.h>
+
+#include <cstdint>
 #include <iostream>
 #include <type_traits>
-#include <utilities/graph_utils.cuh>
-
-#include "topology/topology.cuh"
 
 namespace cugraph {
 namespace detail {

cpp/src/sampling/random_walks.cuh

@@ -21,14 +21,14 @@
 #include <cugraph/detail/utility_wrappers.hpp>
 #include <cugraph/graph.hpp>
 
-#include <topology/topology.cuh>
 #include <utilities/graph_utils.cuh>
 
 #include <raft/device_atomics.cuh>
 #include <raft/handle.hpp>
 
 #include <rmm/device_uvector.hpp>
 
+#include <thrust/binary_search.h>
 #include <thrust/copy.h>
 #include <thrust/count.h>
 #include <thrust/fill.h>