nfs: Remove calls to folio_set_error

nfs: Remove calls to folio_set_error

Common code doesn't test the error flag, so we don't need to set it in
nfs.  We can use folio_end_read() to combine the setting (or not)
of the uptodate flag and clearing the lock flag.

Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Anna Schumaker <anna@kernel.org>
Cc: linux-nfs@vger.kernel.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Link: https://lore.kernel.org/r/20240530202110.2653630-10-willy@infradead.org
Signed-off-by: Christian Brauner <brauner@kernel.org>