ARM: dts: vf610-zii: Remove 'max-brightness' property

The 'max-brightness' property is not a valid one as per
Documentation/devicetree/bindings/leds/leds-gpio.txt, so remove it.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/vf610-zii-cfu1.dts

@@ -29,35 +29,30 @@ led-debug {
 			label = "zii:green:debug1";
 			gpios = <&gpio2 18 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "heartbeat";
-			max-brightness = <1>;
 		};
 
 		led-fail {
 			label = "zii:red:fail";
 			gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
 			default-state = "off";
-			max-brightness = <1>;
 		};
 
 		led-status {
 			label = "zii:green:status";
 			gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
 			default-state = "off";
-			max-brightness = <1>;
 		};
 
 		led-debug-a {
 			label = "zii:green:debug_a";
 			gpios = <&gpio3 14 GPIO_ACTIVE_HIGH>;
 			default-state = "off";
-			max-brightness = <1>;
 		};
 
 		led-debug-b {
 			label = "zii:green:debug_b";
 			gpios = <&gpio3 15 GPIO_ACTIVE_HIGH>;
 			default-state = "off";
-			max-brightness = <1>;
 		};
 	};
 

arch/arm/boot/dts/vf610-zii-ssmb-dtu.dts

@@ -37,7 +37,6 @@ led-debug {
 			label = "zii:green:debug1";
 			gpios = <&gpio2 18 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "heartbeat";
-			max-brightness = <1>;
 		};
 	};
 

arch/arm/boot/dts/vf610-zii-ssmb-spu3.dts

@@ -37,7 +37,6 @@ led-debug {
 			label = "zii:green:debug1";
 			gpios = <&gpio2 18 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "heartbeat";
-			max-brightness = <1>;
 		};
 	};