ARM: DTS: Remove unnecessary u-boot.dtsi options from omap3/36xx

With the introduction of the omap serial driver, the need for some
of these U-Boot specific modifications is gone.  This cleans up
this unnneeded stuff.

Signed-off-by: Adam Ford <aford173@gmail.com>

arch/arm/dts/logicpd-torpedo-37xx-devkit-u-boot.dtsi

@@ -4,14 +4,6 @@
  * Logic PD - http://www.logicpd.com
  */
 
-/ {
-	model = "LogicPD Zoom OMAP3 Development Kit";
-
-	chosen {
-		stdout-path = &uart1;
-	};
-};
-
 &i2c1 {
 	clock-frequency = <400000>;
 };
@@ -28,15 +20,3 @@
       status = "disabled";
 };
 
-&uart1 {
-	reg-shift = <2>;
-};
-
-&uart2 {
-	reg-shift = <2>;
-};
-
-&uart3 {
-	reg-shift = <2>;
-};
-

arch/arm/dts/omap3-u-boot.dtsi

@@ -1,18 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2017
- * Logic PD - http://www.logicpd.com
- */
-
-&uart1 {
-	reg-shift = <2>;
-};
-
-&uart2 {
-	reg-shift = <2>;
-};
-
-&uart3 {
-	reg-shift = <2>;
-};
-

arch/arm/dts/omap36xx-u-boot.dtsi

@@ -1,9 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2017
- * Logic PD - http://www.logicpd.com
- */
-
-&uart4 {
-	reg-shift = <2>;
-};