generic: 6.1, 6.6: remove patch which breaks WAN on MT7621

generic: 6.1, 6.6: remove patch which breaks WAN on MT7621

Importing pending patch "net: dsa: mt7530: move MT753X_MTRAP operations
for MT7530" broke WAN connectivity on most MT7621 which use PHY-muxing
to hook up either port 0 or port 4 to GMAC1.

Remove it for now until the author submits a fixed version.

Fixes: https://github.com/openwrt/openwrt/issues/15279
Fixes: https://github.com/openwrt/openwrt/issues/15273
Fixes: d40691a5fb ("generic: 6.1, 6.6: mt7530: import pending patches")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>