ARM: dts: imx6: remove GPU subsystem nodes

They aren't needed by the etnaviv driver anymore and have been removed
from the binding.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6dl.dtsi

@@ -109,11 +109,6 @@ display-subsystem {
 		compatible = "fsl,imx-display-subsystem";
 		ports = <&ipu1_di0>, <&ipu1_di1>;
 	};
-
-	gpu-subsystem {
-		compatible = "fsl,imx-gpu-subsystem";
-		cores = <&gpu_2d>, <&gpu_3d>;
-	};
 };
 
 &gpio1 {

arch/arm/boot/dts/imx6q.dtsi

@@ -215,11 +215,6 @@ display-subsystem {
 		compatible = "fsl,imx-display-subsystem";
 		ports = <&ipu1_di0>, <&ipu1_di1>, <&ipu2_di0>, <&ipu2_di1>;
 	};
-
-	gpu-subsystem {
-		compatible = "fsl,imx-gpu-subsystem";
-		cores = <&gpu_2d>, <&gpu_3d>, <&gpu_vg>;
-	};
 };
 
 &gpio1 {

arch/arm/boot/dts/imx6sx.dtsi

@@ -1368,9 +1368,4 @@ pcie: pcie@8ffc000 {
 			status = "disabled";
 		};
 	};
-
-	gpu-subsystem {
-		compatible = "fsl,imx-gpu-subsystem";
-		cores = <&gpu>;
-	};
 };