ice: Remove RDMA feature block on E830 devices
The decision to disable RDMA on E830 devices has been reversed; some
SKUs will officially launch with RDMA support.
This reverts a change introduced in "ice: Update to 1.42.5-k".
Signed-off-by: Eric Joyner <erj@FreeBSD.org>
Sponsored by: Intel Corporation
(cherry picked from commit 03e1f25dcb200edbd6553ffc2748e7410b9ff264)