ARM: dts: imx6qdl: tqma6: Remove obsolete comment

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Signed-off-by: NAlexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-mba6.dtsi

@@ -396,7 +396,6 @@
 
 	pinctrl_hog: hoggrp {
 		fsl,pins = <
-			/* LCD.CONTRAST -> Rev 0100 only, not used on Rev.0200*/
 			MX6QDL_PAD_DI0_PIN4__GPIO4_IO20 0x0001b099
 
 			MX6QDL_PAD_ENET_RXD1__GPIO1_IO26 0x0001b099