[][dts: mt7981: remove sw/efuse specification in phy0 node]

[Description]
Remove sw/efuse specification in phy0 node. We set sw/efuse option in phy0
node if we want to force sw/efuse calibration. In normal case, we don't need
this.

[Release-log]
N/A

Change-Id: Ifbfe31224e166653e5e296f63ce2cae4c7f586d9
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5328379
4 files changed