ARM: dove: dt: revert PMU interrupt controller node

The corresponding driver didn't make it into v3.14, so we need to remove
the node.  Dove systems fail to boot with the node present and no
driver.

This node will be re-added when the driver makes it to mainline.
Reported-by: NJean-Francois Moine <moinejf@free.fr>
Tested-by: NJean-Francois Moine <moinejf@free.fr>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/dove.dtsi

@@ -379,15 +379,6 @@ gate_clk: clock-gating-ctrl@d0038 {
 				#clock-cells = <1>;
 			};
 
-			pmu_intc: pmu-interrupt-ctrl@d0050 {
-				compatible = "marvell,dove-pmu-intc";
-				interrupt-controller;
-				#interrupt-cells = <1>;
-				reg = <0xd0050 0x8>;
-				interrupts = <33>;
-				marvell,#interrupts = <7>;
-			};
-
 			pinctrl: pin-ctrl@d0200 {
 				compatible = "marvell,dove-pinctrl";
 				reg = <0xd0200 0x10>;
@@ -610,8 +601,6 @@ gpio1: gpio-ctrl@d0420 {
 			rtc: real-time-clock@d8500 {
 				compatible = "marvell,orion-rtc";
 				reg = <0xd8500 0x20>;
-				interrupt-parent = <&pmu_intc>;
-				interrupts = <5>;
 			};
 
 			gpio2: gpio-ctrl@e8400 {