diff --git a/sys/kern/vfs_extattr.c b/sys/kern/vfs_extattr.c
index 6831357da66..76638277008 100644
--- a/sys/kern/vfs_extattr.c
+++ b/sys/kern/vfs_extattr.c
@@ -4185,24 +4185,3 @@ extattr_delete_fd(td, uap)
 
 	return (error);
 }
-
-#ifndef _SYS_SYSPROTO_H_
-struct nmount_args {
-	struct iovec    *iovp;
-	unsigned int    iovcnt;
-	int             flags;
-	};
-#endif
-/* ARGSUSED */
-int
-nmount(td, uap)
-	struct thread *td;
-	struct nmount_args /* {
-		syscallarg(struct iovec *) iovp;
-		syscallarg(unsigned int) iovcnt;
-		syscallarg(int) flags;
-	} */ *uap;
-{
-
-	return(EOPNOTSUPP);
-}
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
index 6831357da66..76638277008 100644
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -4185,24 +4185,3 @@ extattr_delete_fd(td, uap)
 
 	return (error);
 }
-
-#ifndef _SYS_SYSPROTO_H_
-struct nmount_args {
-	struct iovec    *iovp;
-	unsigned int    iovcnt;
-	int             flags;
-	};
-#endif
-/* ARGSUSED */
-int
-nmount(td, uap)
-	struct thread *td;
-	struct nmount_args /* {
-		syscallarg(struct iovec *) iovp;
-		syscallarg(unsigned int) iovcnt;
-		syscallarg(int) flags;
-	} */ *uap;
-{
-
-	return(EOPNOTSUPP);
-}