block: remove handle_bad_sector

Use the %pg format specifier instead of the stack hungry bdevname
function, and remove handle_bad_sector given that it is not pointless.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20220304180105.409765-3-hch@lst.de


Signed-off-by: Jens Axboe <axboe@kernel.dk>