rockchip: dts: tinker: remove unnecessary node

The property reg-shift with the same value is present in the base
device tree already. Remove unnecessary node from rk3288-tinker.dts.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3288-tinker.dts b/arch/arm/dts/rk3288-tinker.dts
index 3386701..8b1848c 100644
--- a/arch/arm/dts/rk3288-tinker.dts
+++ b/arch/arm/dts/rk3288-tinker.dts
@@ -27,10 +27,6 @@
 	status = "okay";
 };
 
-&uart2 {
-	reg-shift = <2>;
-};
-
 &usb_host1 {
 	vbus-supply = <&vcc5v0_host>;
 	status = "okay";