include: toolchain: common: Remove deprecated __stack macro
include: toolchain: common: Remove deprecated __stack macro

This macro has been deprecated in favor of K_DECLARE_STACK; should have
been removed by 1.11.

Signed-off-by: Leandro Pereira <51c7437a02b34df685e6b4ecb2e9bca23efe2e1a@intel.com>

ldts/zephyr,finikorg/zephyr,mbolivar/zephyr,finikorg/zephyr,nashif/zephyr,nashif/zephyr,kraj/zephyr,kraj/zephyr,punitvara/zephyr,explora26/zephyr,zephyriot/zephyr,Vudentz/zephyr,galak/zephyr,finikorg/zephyr,zephyriot/zephyr,nashif/zephyr,mbolivar/zephyr,Vudentz/zephyr,zephyrproject-rtos/zephyr,mbolivar/zephyr,mbolivar/zephyr,GiulianoFranchetto/zephyr,kraj/zephyr,ldts/zephyr,kraj/zephyr,punitvara/zephyr,GiulianoFranchetto/zephyr,nashif/zephyr,zephyriot/zephyr,zephyrproject-rtos/zephyr,explora26/zephyr,finikorg/zephyr,punitvara/zephyr,zephyriot/zephyr,galak/zephyr,Vudentz/zephyr,punitvara/zephyr,Vudentz/zephyr,kraj/zephyr,ldts/zephyr,ldts/zephyr,explora26/zephyr,zephyriot/zephyr,galak/zephyr,GiulianoFranchetto/zephyr,GiulianoFranchetto/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,explora26/zephyr,finikorg/zephyr,galak/zephyr,explora26/zephyr,GiulianoFranchetto/zephyr,nashif/zephyr,ldts/zephyr,mbolivar/zephyr,Vudentz/zephyr,galak/zephyr