boards native_sim_64: Remove hwmv1 compatible board definition

To use this functionality one must now use the native_sim//64
(variant) version. The old hwmv1 compatible name for the board
was left provisionally while all tests in tree were ported.
That being now done, this old name can be removed.

After this change one cannot build anymore
targeting native_sim_64, but must instead build
targeting native_sim/[native]/64.
For twister tests the old name is already not valid.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>

boards/deprecated.cmake

@@ -409,6 +409,10 @@ set(native_posix_64_DEPRECATED
     native_posix/native/64
 )
 
+set(native_sim_64_DEPRECATED
+    native_sim/native/64
+)
+
 set(nrf21540dk_nrf52840_DEPRECATED
     nrf21540dk
 )

boards/native/native_sim/Kconfig

@@ -12,15 +12,6 @@ config BOARD_NATIVE_SIM
 	  Native simulator (Single Core)
 	  Will produce a console Linux process which can be executed natively.
 
-config BOARD_NATIVE_SIM_64
-	bool
-	select BOARD_NATIVE_SIM
-	select 64BIT
-	help
-	  Native simulator (Single Core) - 64 bit version
-	  Will produce a console Linux process which can be executed natively
-	  as a 64-bit executable.
-
 if BOARD_NATIVE_SIM
 
 comment "Native Simular (Single Core) options"

boards/native/native_sim/Kconfig.native_sim_64

@@ -1,5 +0,0 @@
-# Copyright (c) 2024 Nordic Semiconductor ASA
-# SPDX-License-Identifier: Apache-2.0
-
-config BOARD_NATIVE_SIM_64
-	select SOC_POSIX

boards/native/native_sim/board.yml

@@ -5,11 +5,3 @@ boards:
   - name: native
     variants:
     - name: "64"
-
-# This board definition below, together with its respective
-# Kconfig.native_sim_64 exist for backwards compatibility with the hwmv1 board name
-# Once all its usage in tree is removed, or an alias has been introduced they can be removed.
-- name: native_sim_64
-  vendor: zephyr
-  socs:
-  - name: native

boards/native/native_sim/native_sim_64.dts

@@ -1,7 +0,0 @@
-/*
- * Copyright (c) 2023 Nordic Semiconductor ASA
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#include "native_sim.dts"

boards/native/native_sim/native_sim_64_defconfig

@@ -1,4 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-
-CONFIG_CONSOLE=y
-CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=1000000