diff --git a/src/runtime/nrfx_config.h b/src/runtime/nrfx_config.h
deleted file mode 100644
index f2086eb4..00000000
--- a/src/runtime/nrfx_config.h
+++ /dev/null
@@ -1,4 +0,0 @@
-
-#pragma once
-
-#define NRFX_ASSERT(expression) do { bool res = expression; (void)res; } while (0)
diff --git a/src/runtime/nrfx_glue.h b/src/runtime/nrfx_glue.h
deleted file mode 100644
index e69de29b..00000000
diff --git a/src/runtime/runtime_nrf.h b/src/runtime/runtime_nrf.h
deleted file mode 100644
index 1ae8572e..00000000
--- a/src/runtime/runtime_nrf.h
+++ /dev/null
@@ -1,6 +0,0 @@
-
-#pragma once
-
-#include <stdint.h>
-
-void rtc_sleep(uint32_t ticks);