f2fs: remove unnecessary ClearPageUptodate in f2fs_verify_cluster()

Remove the unnecessary clearing of PG_uptodate.  It's guaranteed to
already be clear.

Suggested-by: Matthew Wilcox <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20260218010630.7407-2-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>

Author: Eric Biggers

fs/f2fs/compress.c

@@ -1819,8 +1819,6 @@ static void f2fs_verify_cluster(struct work_struct *work)
 
 		if (fsverity_verify_page(dic->vi, rpage))
 			SetPageUptodate(rpage);
-		else
-			ClearPageUptodate(rpage);
 		unlock_page(rpage);
 	}