ARM: dts: at91: calao: remove leftovers clock definition

The clocks group properties and the clock@0 node have been obsolete for two
years, remove them.
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

arch/arm/boot/dts/at91-qil_a9260.dts

@@ -20,15 +20,6 @@ memory {
 	};
 
 	clocks {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		main_clock: clock@0 {
-			compatible = "atmel,osc", "fixed-clock";
-			clock-frequency = <12000000>;
-		};
-
 		slow_xtal {
 			clock-frequency = <32768>;
 		};

arch/arm/boot/dts/tny_a9260_common.dtsi

@@ -16,15 +16,6 @@ memory {
 	};
 
 	clocks {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		main_clock: clock@0 {
-			compatible = "atmel,osc", "fixed-clock";
-			clock-frequency = <12000000>;
-		};
-
 		slow_xtal {
 			clock-frequency = <32768>;
 		};

arch/arm/boot/dts/tny_a9263.dts

@@ -21,15 +21,6 @@ memory {
 	};
 
 	clocks {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		main_clock: clock@0 {
-			compatible = "atmel,osc", "fixed-clock";
-			clock-frequency = <12000000>;
-		};
-
 		slow_xtal {
 			clock-frequency = <32768>;
 		};

arch/arm/boot/dts/usb_a9260_common.dtsi

@@ -8,15 +8,6 @@
 
 / {
 	clocks {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		main_clock: clock@0 {
-			compatible = "atmel,osc", "fixed-clock";
-			clock-frequency = <12000000>;
-		};
-
 		slow_xtal {
 			clock-frequency = <32768>;
 		};

arch/arm/boot/dts/usb_a9263.dts

@@ -21,15 +21,6 @@ memory {
 	};
 
 	clocks {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		main_clock: clock@0 {
-			compatible = "atmel,osc", "fixed-clock";
-			clock-frequency = <12000000>;
-		};
-
 		slow_xtal {
 			clock-frequency = <32768>;
 		};