splice: don't call file_accessed in copy_splice_read

copy_splice_read calls into ->read_iter to read the data, which already
calls file_accessed.

Fixes: 33b3b04 ("splice: Add a func to do a splice from an O_DIRECT file without ITER_PIPE")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20230614140341.521331-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

Author: Christoph Hellwig

fs/splice.c

@@ -368,7 +368,6 @@ ssize_t copy_splice_read(struct file *in, loff_t *ppos,
 	if (ret > 0) {
 		keep = DIV_ROUND_UP(ret, PAGE_SIZE);
 		*ppos = kiocb.ki_pos;
-		file_accessed(in);
 	} else if (ret < 0) {
 		/*
 		 * callers of ->splice_read() expect -EAGAIN on