Remove unnecessary header

Rafał Hibner · Rafał Hibner · commit 4ff1bd471122 · 2025-07-17T12:46:34.000Z
diff --git a/cpp/src/arrow/dataset/dataset_writer_test.cc b/cpp/src/arrow/dataset/dataset_writer_test.cc
@@ -20,7 +20,6 @@
 #include <chrono>
 #include <mutex>
 #include <optional>
-#include <random>
 #include <thread>
 #include <vector>
 
