diff --git a/libc/arch-x86/generic/string/swab.S b/libc/arch-x86/generic/string/swab.S
deleted file mode 100644
index b44d13413..000000000
--- a/libc/arch-x86/generic/string/swab.S
+++ /dev/null
@@ -1,68 +0,0 @@
-/*	$OpenBSD: swab.S,v 1.3 2005/08/07 11:30:38 espie Exp $ */
-/*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Public domain.
- */
-
-#include <private/bionic_asm.h>
-
-/*
- * On the i486, this code is negligibly faster than the code generated
- * by gcc at about half the size.  If my i386 databook is correct, it
- * should be considerably faster than the gcc code on a i386.
- */
-
-ENTRY(swab)
-	pushl	%esi
-	pushl	%edi
-	movl	12(%esp),%esi
-	movl	16(%esp),%edi
-	movl	20(%esp),%ecx
-
-	cld				# set direction forward
-
-	shrl	$1,%ecx
-	testl	$7,%ecx			# copy first group of 1 to 7 words
-	jz	L2			# while swaping alternate bytes.
-	.align	2,0x90
-L1:	lodsw
-	rorw	$8,%ax
-	stosw
-	decl	%ecx
-	testl	$7,%ecx
-	jnz	L1
-
-L2:	shrl	$3,%ecx			# copy remainder 8 words at a time
-	jz	L4			# while swapping alternate bytes.
-	.align	2,0x90
-L3:	lodsw
-	rorw	$8,%ax
-	stosw
-	lodsw
-	rorw	$8,%ax
-	stosw
-	lodsw
-	rorw	$8,%ax
-	stosw
-	lodsw
-	rorw	$8,%ax
-	stosw
-	lodsw
-	rorw	$8,%ax
-	stosw
-	lodsw
-	rorw	$8,%ax
-	stosw
-	lodsw
-	rorw	$8,%ax
-	stosw
-	lodsw
-	rorw	$8,%ax
-	stosw
-	decl	%ecx
-	jnz	L3
-
-L4:	popl	%edi
-	popl	%esi
-	ret
-END(swab)