Removed unused variables in LED driver that were causing fatal build errors on Qurt platform (#21007)

boards/modalai/voxl2-slpi/default.px4board

@@ -3,6 +3,7 @@ CONFIG_BOARD_TOOLCHAIN="qurt"
 CONFIG_DRIVERS_ACTUATORS_MODAL_IO=y
 CONFIG_DRIVERS_POWER_MONITOR_VOXLPM=y
 CONFIG_DRIVERS_QSHELL_QURT=y
+CONFIG_DRIVERS_LIGHTS_RGBLED_NCP5623C=y
 CONFIG_MODULES_EKF2=y
 CONFIG_MODULES_LAND_DETECTOR=y
 CONFIG_MODULES_MC_ATT_CONTROL=y

src/drivers/lights/rgbled_ncp5623c/rgbled_ncp5623c.cpp

@@ -87,8 +87,6 @@ private:
 	uint8_t		_g{0};
 	uint8_t		_b{0};
 	volatile bool		_running{false};
-	volatile bool		_should_run{true};
-	bool			_leds_enabled{true};
 
 	LedController		_led_controller;