diff --git a/lib/libc/musl/src/misc/ffs.c b/lib/libc/musl/src/misc/ffs.c
deleted file mode 100644
index 673ce5a9758284c7eca182b32de3902c9b353b3f..0000000000000000000000000000000000000000
--- a/lib/libc/musl/src/misc/ffs.c
+++ /dev/null
@@ -1,7 +0,0 @@
-#include <strings.h>
-#include "atomic.h"
-
-int ffs(int i)
-{
-	return i ? a_ctz_l(i)+1 : 0;
-}
diff --git a/lib/libc/musl/src/misc/ffsl.c b/lib/libc/musl/src/misc/ffsl.c
deleted file mode 100644
index 0105c66af9d18946ce9b3f8616c8baa6c7a55cde..0000000000000000000000000000000000000000
--- a/lib/libc/musl/src/misc/ffsl.c
+++ /dev/null
@@ -1,7 +0,0 @@
-#include <strings.h>
-#include "atomic.h"
-
-int ffsl(long i)
-{
-	return i ? a_ctz_l(i)+1 : 0;
-}
diff --git a/lib/libc/musl/src/misc/ffsll.c b/lib/libc/musl/src/misc/ffsll.c
deleted file mode 100644
index 0c5ced826657993210a021f49d76560a03a416d6..0000000000000000000000000000000000000000
--- a/lib/libc/musl/src/misc/ffsll.c
+++ /dev/null
@@ -1,7 +0,0 @@
-#include <strings.h>
-#include "atomic.h"
-
-int ffsll(long long i)
-{
-	return i ? a_ctz_64(i)+1 : 0;
-}