diff --git a/ports/atmel-samd/boards/cytron_maker_zero_samd21/board.c b/ports/atmel-samd/boards/cytron_maker_zero_samd21/board.c
deleted file mode 100644
index e0a7487bd2..0000000000
--- a/ports/atmel-samd/boards/cytron_maker_zero_samd21/board.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "supervisor/board.h"
-#include "mpconfigboard.h"
-#include "hal/include/hal_gpio.h"
-
-void board_init(void) {
-}
-
-bool board_requests_safe_mode(void) {
-    return false;
-}
-
-void reset_board(void) {
-}
-
-void board_deinit(void) {
-}