Nobody checks the error flag on ufs folios, so stop setting it.

Cc: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Link: https://lore.kernel.org/r/20240530202110.2653630-14-willy@infradead.orgSigned-off-by: Christian Brauner <brauner@kernel.org>