ARM: dts: aspeed: rainier: Remove PSU gpio-keys

Remove the gpio-keys entries for the power supply presence lines from
the Rainier device tree. The user space applications are going to change
from using libevdev to libgpiod.
Signed-off-by: B. J. Wyman <bjwyman@gmail.com>
Link: https://lore.kernel.org/r/20210623230401.3050076-1-bjwyman@gmail.comSigned-off-by: Joel Stanley <joel@jms.id.au>

arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts

@@ -116,34 +116,6 @@ vga_memory: region@bf000000 {
 		};
 	};
 
-	gpio-keys {
-		compatible = "gpio-keys";
-
-		ps0-presence {
-			label = "ps0-presence";
-			gpios = <&gpio0 ASPEED_GPIO(S, 0) GPIO_ACTIVE_LOW>;
-			linux,code = <ASPEED_GPIO(S, 0)>;
-		};
-
-		ps1-presence {
-			label = "ps1-presence";
-			gpios = <&gpio0 ASPEED_GPIO(S, 1) GPIO_ACTIVE_LOW>;
-			linux,code = <ASPEED_GPIO(S, 1)>;
-		};
-
-		ps2-presence {
-			label = "ps2-presence";
-			gpios = <&gpio0 ASPEED_GPIO(S, 2) GPIO_ACTIVE_LOW>;
-			linux,code = <ASPEED_GPIO(S, 2)>;
-		};
-
-		ps3-presence {
-			label = "ps3-presence";
-			gpios = <&gpio0 ASPEED_GPIO(S, 3) GPIO_ACTIVE_LOW>;
-			linux,code = <ASPEED_GPIO(S, 3)>;
-		};
-	};
-
 	i2c2mux: i2cmux {
 		compatible = "i2c-mux-gpio";
 		#address-cells = <1>;