Revert "sunxi: a13-olinuxino: Add user LED to the device tree"

This reverts commit 867dc8be.

The patch caused a build problem in allyesconfig by referencing an
undefined device tree label 'pio'.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/boot/dts/sun5i-a13-olinuxino.dts

@@ -23,28 +23,8 @@ chosen {
 	};
 
 	soc {
-		pinctrl@01c20800 {
-			led_pins_olinuxino: led_pins@0 {
-				allwinner,pins = "PG9";
-				allwinner,function = "gpio_out";
-				allwinner,drive = <1>;
-				allwinner,pull = <0>;
-			};
-		};
-
 		uart1: uart@01c28400 {
 			status = "okay";
 		};
 	};
-
-	leds {
-		compatible = "gpio-leds";
-		pinctrl-names = "default";
-		pinctrl-0 = <&led_pins_olinuxino>;
-
-		power {
-			gpios = <&pio 6 9 0>;
-			default-state = "on";
-		};
-	};
 };