ramips: remove phy0tpt trigger from RT-AC65P/RT-AC85P power LED

This patch removes a phy0tpt trigger from the power LED, which
seems to have been added by mistake.

WiFi LEDs using phy0radio and phy1radio triggers are present and
used correctly.

Cc: Birger Koblitz <mail@birger-koblitz.de>

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

target/linux/ramips/dts/mt7621_asus_rt-acx5p.dtsi

@@ -46,7 +46,6 @@
 		led_power: power {
 			label = "rt-ac85p:blue:power";
 			gpios = <&gpio0 4 GPIO_ACTIVE_LOW>;
-			linux,default-trigger = "phy0tpt";
 		};
 		wlan2g {
 			label = "rt-ac85p:blue:wlan2g";