[SCSI] qla2xxx: Remove implicit ISP-abort after a flash update.

For ISP24xx and above the ISP-abort after flash update is not
needed, as the only purpose it was serving was to update the boot
code and firmware versions in the scsi_qla_host_t structure.  Now
an update of the versions will be done in the write-vpd path.

Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com>
Additional cleanups and
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>