diff --git a/tests/drivers/flash_simulator/flash_sim_impl/boards/native_posix.overlay b/tests/drivers/flash_simulator/flash_sim_impl/boards/native_posix.overlay
deleted file mode 100644
index 59b29bd8512..00000000000
--- a/tests/drivers/flash_simulator/flash_sim_impl/boards/native_posix.overlay
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * Copyright (c) 2023 Nordic Semiconductor ASA
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#include "native_sim.overlay"
diff --git a/tests/drivers/flash_simulator/flash_sim_impl/boards/native_posix_native_64.overlay b/tests/drivers/flash_simulator/flash_sim_impl/boards/native_posix_native_64.overlay
deleted file mode 100644
index 9fe8b9c2160..00000000000
--- a/tests/drivers/flash_simulator/flash_sim_impl/boards/native_posix_native_64.overlay
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * Copyright (c) 2024 Nordic Semiconductor ASA
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#include "native_posix.overlay"