bnxt_en: Remove unused macros in bnxt_ulp.h

BNXT_ROCE_ULP and BNXT_MAX_ULP are no longer used.  Remove them to
clean up the code.

Reviewed-by: Shruti Parab <shruti.parab@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250417172448.1206107-5-michael.chan@broadcom.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>