ARM: dts: sun[4-7]i: Remove "cooling-{min|max}-level" for CPU nodes

The "cooling-min-level" and "cooling-max-level" properties are not
parsed by any part of the kernel currently and the max cooling state of
a CPU cooling device is found by referring to the cpufreq table instead.

Remove the unused properties from the CPU nodes.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>

arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts

@@ -97,7 +97,6 @@ &cpu0 {
 		864000  1300000
 		624000  1250000
 		>;
-	cooling-max-level = <2>;
 };
 
 &de {

arch/arm/boot/dts/sun4i-a10.dtsi

@@ -123,8 +123,6 @@ cpu0: cpu@0 {
 				624000	1250000
 				>;
 			#cooling-cells = <2>;
-			cooling-min-level = <0>;
-			cooling-max-level = <3>;
 		};
 	};
 

arch/arm/boot/dts/sun5i-a13.dtsi

@@ -116,8 +116,6 @@ &cpu0 {
 		432000	1200000
 		>;
 	#cooling-cells = <2>;
-	cooling-min-level = <0>;
-	cooling-max-level = <5>;
 };
 
 &pio {

arch/arm/boot/dts/sun6i-a31.dtsi

@@ -113,8 +113,6 @@ cpu0: cpu@0 {
 				480000	1000000
 				>;
 			#cooling-cells = <2>;
-			cooling-min-level = <0>;
-			cooling-max-level = <3>;
 		};
 
 		cpu@1 {

arch/arm/boot/dts/sun7i-a20.dtsi

@@ -116,8 +116,6 @@ cpu0: cpu@0 {
 				144000	1000000
 				>;
 			#cooling-cells = <2>;
-			cooling-min-level = <0>;
-			cooling-max-level = <6>;
 		};
 
 		cpu@1 {