ramips: remove HiWiFi HC5661 non-existent 5GHz LED

HC5661 does not have 5GHz WiFi or LED.

Fixes: e6e373d348 ("ramips: Add DTS files for HiWiFi HC5x61 models")

Signed-off-by: DENG Qingfang <dengqf6@mail2.sysu.edu.cn>

target/linux/ramips/dts/mt7620a_hiwifi_hc5661.dts

@@ -30,10 +30,5 @@
 			label = "hc5661:blue:wlan2g";
 			gpios = <&gpio3 0 GPIO_ACTIVE_LOW>;
 		};
-
-		wlan5g {
-			label = "hc5661:blue:wlan5g";
-			gpios = <&gpio0 7 GPIO_ACTIVE_LOW>;
-		};
 	};
 };