wifi: ath12k: remove redundant vif settings during link interface creation

wifi: ath12k: remove redundant vif settings during link interface creation

Currently, vif level settings are done in ath12k_mac_assign_link_vif() as
well as in ath12k_mac_op_add_interface(). Since it is vif level settings,
doing this on per link does not make sense and it contributes to redundant
code. Get rid of this redundant code from ath12k_mac_assign_link_vif().

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1.97421.5 # Nicolas Escande

Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com>
Tested-by: Nicolas Escande <nico.escande@gmail.com>
Link: https://patch.msgid.link/20250204-unlink_link_arvif_from_chanctx-v2-3-764fb5973c1a@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>