Revert "[nrf noup] samples/smp_svr: nrf54l15pdk ext-flash partition"

This reverts commit ed81da7.

Signed-off-by: Jamie McCrae <[email protected]>

Author: nordicjm

samples/subsys/mgmt/mcumgr/smp_svr/boards/nrf54l15dk_nrf54l15_cpuapp_ext_flash.overlay

@@ -4,42 +4,6 @@
 	};
 };
 
-/delete-node/ &boot_partition;
-/delete-node/ &slot0_partition;
-/delete-node/ &slot1_partition;
-
-/delete-node/ &slot0_ns_partition;
-/delete-node/ &slot1_ns_partition;
-
-/delete-node/ &storage_partition;
-
-&rram0 {
-	partitions {
-		boot_partition: partition@0 {
-			label = "mcuboot";
-			reg = <0x000000000 0x00014000>;
-		};
-		slot0_partition: partition@14000 {
-			label = "image-0";
-			reg = <0x000014000 0x0015A000>;
-		};
-		storage_partition: partition@16E000 {
-			label = "storage";
-			reg = < 0x16E000 0x9000 >;
-		};
-	};
-};
-
 &mx25r64 {
 	status = "okay";
-	partitions {
-		compatible = "fixed-partitions";
-		#address-cells = <1>;
-		#size-cells = <1>;
-
-		slot1_partition: partition@0 {
-			label = "image-1";
-			reg = <0x000000000 0x0015A000>;
-		};
-	};
 };