tests/benchmarks/../nrf54h20dk: fix dts overlay

removed a new alias which node is removed by this dts.

Signed-off-by: Andrzej Puzdrowski <[email protected]>

Author: nvlsianpu

tests/benchmarks/multicore/idle_twim/sysbuild/vpr_launcher/boards/nrf54h20dk_nrf54h20_cpuapp.overlay

@@ -8,6 +8,7 @@
 	aliases {
 		/delete-property/ led0;
 		/delete-property/ led1;
+		/delete-property/ mcuboot-led0;
 	};
 };