diff --git a/samples/drivers/watchdog/boards/nrf54l20pdk_nrf54l20_cpuapp.overlay b/samples/drivers/watchdog/boards/nrf54l20pdk_nrf54l20_cpuapp.overlay
deleted file mode 100644
index 5c765a8a896..00000000000
--- a/samples/drivers/watchdog/boards/nrf54l20pdk_nrf54l20_cpuapp.overlay
+++ /dev/null
@@ -1,8 +0,0 @@
-/*
- * Copyright 2024 Nordic Semiconductor ASA
- * SPDX-License-Identifier: Apache-2.0
- */
-
-&wdt31 {
-	status = "okay";
-};
diff --git a/samples/drivers/watchdog/boards/nrf54l20pdk_nrf54l20_cpuflpr.overlay b/samples/drivers/watchdog/boards/nrf54l20pdk_nrf54l20_cpuflpr.overlay
deleted file mode 100644
index cfb41e09b99..00000000000
--- a/samples/drivers/watchdog/boards/nrf54l20pdk_nrf54l20_cpuflpr.overlay
+++ /dev/null
@@ -1,8 +0,0 @@
-/*
- * Copyright 2025 Nordic Semiconductor ASA
- * SPDX-License-Identifier: Apache-2.0
- */
-
-&wdt31 {
-	status = "okay";
-};