Revert "arm: dts: Add pinctrl/GPIO/EINT node for mt2701"

This reverts commit 8ba671ef.

As reported by kbuild test robot <fengguang.wu@intel.com>:

   In file included from arch/arm/boot/dts/mt2701-evb.dts:16:0:
>> arch/arm/boot/dts/mt2701.dtsi:18:28: fatal error: mt2701-pinfunc.h: No such file or directory
    #include "mt2701-pinfunc.h"
                               ^
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

arch/arm/boot/dts/mt2701.dtsi

@@ -15,7 +15,6 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include "skeleton64.dtsi"
-#include "mt2701-pinfunc.h"
 
 / {
 	compatible = "mediatek,mt2701";
@@ -86,24 +85,6 @@
 			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
 	};
 
-	pio: pinctrl@10005000 {
-		compatible = "mediatek,mt2701-pinctrl";
-		reg = <0 0x1000b000 0 0x1000>;
-		mediatek,pctl-regmap = <&syscfg_pctl_a>;
-		pins-are-numbered;
-		gpio-controller;
-		#gpio-cells = <2>;
-		interrupt-controller;
-		#interrupt-cells = <2>;
-		interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>,
-			     <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
-	};
-
-	syscfg_pctl_a: syscfg@10005000 {
-		compatible = "mediatek,mt2701-pctl-a-syscfg", "syscon";
-		reg = <0 0x10005000 0 0x1000>;
-	};
-
 	watchdog: watchdog@10007000 {
 		compatible = "mediatek,mt2701-wdt",
 			     "mediatek,mt6589-wdt";