RDMA/bnxt_re: Remove a redundant flag

After the cited commit, BNXT_RE_FLAG_GOT_MSIX is redundant.
Remove it.

Fixes: 30343221 ("bnxt_en: Remove runtime interrupt vector allocation")
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1691052326-32143-3-git-send-email-selvin.xavier@broadcom.com


Signed-off-by: Leon Romanovsky <leon@kernel.org>