scsi: Remove unneeded break statements

A break is not needed if it is preceded by a return or goto.

Link: https://lore.kernel.org/r/20201019142333.16584-1-trix@redhat.com


Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>