samples: Remove snippets from samples

We should store our snippets in the root directory instead of
sample's one.

Signed-off-by: Arkadiusz Balys <arkadiusz.balys@nordicsemi.no>

Author: ArekBalysNordic

samples/light_switch/Kconfig

@@ -49,10 +49,3 @@ config LIGHT_SWITCH_TX_POWER
 	default 0
 	help
 		TX power level in dBm.
-
-config LIGHT_SWITCH_LOW_POWER
-	bool "Low power mode"
-	default n
-	help
-		Enable low power mode for the Light Switch sample.
-		This enables sleepy behavior and disables LEDs for power savings.

samples/light_switch/src/app_task_zigbee.c

@@ -116,7 +116,7 @@
 LOG_MODULE_REGISTER(zb_lightswitch, LOG_LEVEL_INF);
 
 /* Helper functions for LED control in low power mode */
-#if CONFIG_LIGHT_SWITCH_LOW_POWER
+#if defined(CONFIG_PM_DEVICE)
 static inline void led_set(uint32_t led, uint32_t val) { ARG_UNUSED(led); ARG_UNUSED(val); }
 static inline void led_set_on(uint32_t led) { ARG_UNUSED(led); }
 static inline void led_set_off(uint32_t led) { ARG_UNUSED(led); }
@@ -388,7 +388,7 @@ static void configure_gpio(void)
 		LOG_ERR("Cannot init buttons (err: %d)", err);
 	}
 
-#if !CONFIG_LIGHT_SWITCH_LOW_POWER
+#if !defined(CONFIG_PM_DEVICE)
 	err = dk_leds_init();
 	if (err) {
 		LOG_ERR("Cannot init LEDs (err: %d)", err);
@@ -923,7 +923,7 @@ int ZigbeeStart(void)
 	/* Check if sleepy button is pressed during Zigbee initialization
 	 * and enable sleepy behavior. In low power mode, always enable sleepy behavior.
 	 */
-#if CONFIG_LIGHT_SWITCH_LOW_POWER
+#if defined(CONFIG_PM_DEVICE)
 	bool enable_sleepy = true;
 #elif defined(CONFIG_CHIP)
 	bool enable_sleepy = false;

…ow_power/boards/nrf52840dk_nrf52840.conf …ow_power/boards/nrf52840dk_nrf52840.confsamples/light_switch/snippets/low_power/boards/nrf52840dk_nrf52840.conf renamed to snippets/low_power/boards/nrf52840dk_nrf52840.conf samples/light_switch/snippets/low_power/boards/nrf52840dk_nrf52840.conf renamed to snippets/low_power/boards/nrf52840dk_nrf52840.conf

@@ -4,9 +4,6 @@
 # SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 #
 
-# Low power configuration for Zigbee Light Switch
-CONFIG_LIGHT_SWITCH_LOW_POWER=y
-
 # Disable serial and console for power savings
 CONFIG_SERIAL=n
 CONFIG_CONSOLE=n