ARM: dts: k2g-ice : remove tx irq from DTS

tx irq is optional in the driver. So remove the same from dts
to get a better egress performance for small size frames.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>

arch/arm/boot/dts/keystone-k2g-ice.dts

@@ -246,8 +246,8 @@ pruss0_eth {
 		pruss0_emac0: ethernet-mii0 {
 			phy-handle = <&pruss0_eth0_phy>;
 			phy-mode = "mii";
-			interrupts = <20>, <22>;
-			interrupt-names = "rx", "tx";
+			interrupts = <20>;
+			interrupt-names = "rx";
 			ti,no-half-duplex;
 			/* Filled in by bootloader */
 			local-mac-address = [00 00 00 00 00 00];
@@ -256,8 +256,8 @@ pruss0_emac0: ethernet-mii0 {
 		pruss0_emac1: ethernet-mii1 {
 			phy-handle = <&pruss0_eth1_phy>;
 			phy-mode = "mii";
-			interrupts = <21>, <23>;
-			interrupt-names = "rx", "tx";
+			interrupts = <21>;
+			interrupt-names = "rx";
 			ti,no-half-duplex;
 			/* Filled in by bootloader */
 			local-mac-address = [00 00 00 00 00 00];
@@ -280,8 +280,8 @@ pruss1_eth {
 		pruss1_emac0: ethernet-mii0 {
 			phy-handle = <&pruss1_eth0_phy>;
 			phy-mode = "mii";
-			interrupts = <20>, <22>;
-			interrupt-names = "rx", "tx";
+			interrupts = <20>;
+			interrupt-names = "rx";
 			ti,no-half-duplex;
 			/* Filled in by bootloader */
 			local-mac-address = [00 00 00 00 00 00];
@@ -290,8 +290,8 @@ pruss1_emac0: ethernet-mii0 {
 		pruss1_emac1: ethernet-mii1 {
 			phy-handle = <&pruss1_eth1_phy>;
 			phy-mode = "mii";
-			interrupts = <21>, <23>;
-			interrupt-names = "rx", "tx";
+			interrupts = <21>;
+			interrupt-names = "rx";
 			ti,no-half-duplex;
 			/* Filled in by bootloader */
 			local-mac-address = [00 00 00 00 00 00];