block: default BLOCK_LEGACY_AUTOLOAD to y

commit 451f0b6f upstream.

As Luis reported, losetup currently doesn't properly create the loop
device without this if the device node already exists because old
scripts created it manually.  So default to y for now and remove the
aggressive removal schedule.

Reported-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220225181440.1351591-1-hch@lst.de


Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Sebastian Priebe <sebastian.priebe@konplan.com>
Link: https://lore.kernel.org/r/ZR0P278MB097497EF6CFD85E72819447E9F70A@ZR0P278MB0974.CHEP278.PROD.OUTLOOK.COM


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>