Add standalone bench target

ConflictSet.cpp

@@ -1178,30 +1178,6 @@ void __throw_length_error(const char *) { __builtin_unreachable(); }
 } // namespace std
 
 #ifdef ENABLE_MAIN
-#define ANKERL_NANOBENCH_IMPLEMENT
-#include "third_party/nanobench.h"
-
-void bench() {
-  ankerl::nanobench::Bench bench;
-  {
-    auto *n = newNode();
-    for (int i = 0; i < 64; ++i) {
-      getOrCreateChild(n, i) = newNode();
-      bench.run("getChildLeq" + std::to_string(i),
-                [&]() { bench.doNotOptimizeAway(getChildLeq(n, 255)); });
-    }
-    destroyTree(n);
-  }
-  {
-    auto *n = newNode();
-    for (int i = 255; i >= 3 * 64; --i) {
-      getOrCreateChild(n, i) = newNode();
-      bench.run("getChildGeq" + std::to_string(i),
-                [&]() { bench.doNotOptimizeAway(getChildGeq(n, 0)); });
-    }
-    destroyTree(n);
-  }
-}
 
 void printTree() {
   int64_t writeVersion = 0;
@@ -1224,8 +1200,7 @@ void printTree() {
 }
 
 int main(void) {
-  bench();
-  // printTree();
+  printTree();
   return 0;
 }
 #endif