Revert "wifi: ath11k: restore country code during resume"

This reverts commit 7f0343b7.

We are going to revert commit 166a490f ("wifi: ath11k: support hibernation"), on
which this commit depends. With that commit reverted, this one is not needed any
more, so revert this commit first.

Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240830073420.5790-2-quic_bqiang@quicinc.com