The clang static analyzer reports the following warning,

File: drivers/cdrom/cdrom.c
Warning: line 1380, column 7
	 Although the value stored to 'status' is used in enclosing
	 expression, the value is never actually read from 'status'

Remove the unused variable to eliminate the warning.
Signed-off-by: NEnze Li <lienze@kylinos.cn>
Link: https://lore.kernel.org/all/20220401032623.293666-1-lienze@kylinos.cnSigned-off-by: NPhillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20220401211842.2088096-1-phil@philpotter.co.ukSigned-off-by: NJens Axboe <axboe@kernel.dk>