bury __generic_file_aio_write()

all users converted to __generic_file_write_iter() now
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

include/linux/fs.h

@@ -2413,7 +2413,6 @@ extern int generic_file_remap_pages(struct vm_area_struct *, unsigned long addr,
 int generic_write_checks(struct file *file, loff_t *pos, size_t *count, int isblk);
 extern ssize_t generic_file_aio_read(struct kiocb *, const struct iovec *, unsigned long, loff_t);
 extern ssize_t generic_file_read_iter(struct kiocb *, struct iov_iter *);
-extern ssize_t __generic_file_aio_write(struct kiocb *, const struct iovec *, unsigned long);
 extern ssize_t __generic_file_write_iter(struct kiocb *, struct iov_iter *);
 extern ssize_t generic_file_aio_write(struct kiocb *, const struct iovec *, unsigned long, loff_t);
 extern ssize_t generic_file_write_iter(struct kiocb *, struct iov_iter *);

mm/filemap.c

@@ -2645,17 +2645,6 @@ ssize_t __generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 }
 EXPORT_SYMBOL(__generic_file_write_iter);
 
-ssize_t __generic_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
-				 unsigned long nr_segs)
-{
-	size_t count = iov_length(iov, nr_segs);
-	struct iov_iter from;
-
-	iov_iter_init(&from, WRITE, iov, nr_segs, count);
-	return __generic_file_write_iter(iocb, &from);
-}
-EXPORT_SYMBOL(__generic_file_aio_write);
-
 /**
  * generic_file_write_iter - write data to a file
  * @iocb:	IO state structure