net: ena: use napi's aRFS rmap notifers

Use the core's rmap notifiers and delete our own.

Acked-by: David Arinzon <darinzon@amazon.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Link: https://patch.msgid.link/20250224232228.990783-3-ahmed.zaki@intel.com


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