[][kernel][mt7981][eth][phy: mediatek-ge: Remove TX-AMP redundant settings]

[Description]
Remove TX-AMP redundant settings, which won't be used anymore, because
driver will fail to probe once efuse values are invalid.

[Release-log]
N/A

Change-Id: I4c511ffab7e9c7a6722b63bac08de1ffed78267d
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7314039
1 file changed