ARM: dts: at91sam9261ek: remove unused chosen nodes

The chosen clocksource and clockevent bindings have never been accepted and
parsed, remove them.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

arch/arm/boot/dts/at91sam9261ek.dts

@@ -15,14 +15,6 @@ / {
 	chosen {
 		bootargs = "rootfstype=ubifs ubi.mtd=5 root=ubi0:rootfs rw";
 		stdout-path = "serial0:115200n8";
-
-		clocksource {
-			timer = <&timer0>;
-		};
-
-		clockevent {
-			timer = <&timer1>;
-		};
 	};
 
 	memory {