arm64: dts: ti: k3-am625-sk: Remove M4 mailbox node redefinition

This node is already defined in the included k3-am62x-sk-common.dtsi.
Remove this redefinition.

Signed-off-by: Andrew Davis <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Nishanth Menon <[email protected]>

Author: glneo

arch/arm64/boot/dts/ti/k3-am625-sk.dts

@@ -219,13 +219,6 @@
 	};
 };
 
-&mailbox0_cluster0 {
-	mbox_m4_0: mbox-m4-0 {
-		ti,mbox-rx = <0 0 0>;
-		ti,mbox-tx = <1 0 0>;
-	};
-};
-
 &fss {
 	bootph-all;
 };