scsi: megaraid_sas: Remove undefined ENABLE_IRQ_POLL macro

scsi: megaraid_sas: Remove undefined ENABLE_IRQ_POLL macro

As the ENABLE_IRQ_POLL macro is undefined, the check for ENABLE_IRQ_POLL
macro in ISR will always be false. This leads to irq polling being
non-functional.

Remove ENABLE_IRQ_POLL check from ISR.

Link: https://lore.kernel.org/r/[email protected]
Fixes: a6ffd5bf6819 ("scsi: megaraid_sas: Call disable_irq from process IRQ")
Cc: <[email protected]> # v5.3+
Signed-off-by: Chandrakanth Patil <[email protected]>
Signed-off-by: Kashyap Desai <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>