[][MAC80211][WiFi7][misc][remove sleep for each phy when teardown]

[Description]
Remove sleep for each phy when teardown.
It was used to change the teardown order into phy2->phy1->phy0, and
also prevent conflict between each phy.

Now hostapd has its solution to avoid the problem, so the sleep becomes
unnecessary.

[Release-log]
N/A

Change-Id: I7b1dc614a5bb67cd3f7283ac9f1887c57d654afe
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/9051264
1 file changed