ARM: dts: imx6sl-warp: Remove unused regulator

The 'reg_1p8v' regulator is not used anywhere, so let's remove it.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx6sl-warp.dts

@@ -82,14 +82,6 @@ reg_usb_otg2_vbus: regulator@1 {
 			gpio = <&gpio4 2 0>;
 			enable-active-high;
 		};
-
-		reg_1p8v: regulator@2 {
-			compatible = "regulator-fixed";
-			reg = <2>;
-			regulator-name = "1P8V";
-			regulator-min-microvolt = <1800000>;
-			regulator-max-microvolt = <1800000>;
-		};
 	};
 
 	usdhc3_pwrseq: usdhc3_pwrseq {