app: Remove usage of stack Kconfig

Remove `CONFIG_DEBUG_STATE_MACHINE` from prj.conf.

Signed-off-by: Adrian Gielniewski <adrian.gielniewski@nordicsemi.no>

Author: adigie

app/prj.conf

@@ -20,7 +20,6 @@ CONFIG_ASSERT=y
 CONFIG_CONSOLE=y
 CONFIG_LOG=y
 CONFIG_NCS_ALIRO_RFAL_LOG_LEVEL_DBG=y
-CONFIG_DEBUG_STATE_MACHINE=y
 CONFIG_USE_SEGGER_RTT=n
 CONFIG_LOG_BACKEND_RTT=n
 CONFIG_LOG_BACKEND_SHOW_COLOR=n