c++11 default destructors

src/drivers/samv7/drv_input_capture.c

@@ -87,13 +87,12 @@ static struct channel_handler_entry {
 	void			  *context;
 } channel_handlers[MAX_TIMER_IO_CHANNELS];
 
-
-
 static void input_capture_chan_handler(void *context, const io_timers_t *timer, uint32_t chan_index,
 				       const timer_io_channels_t *chan,
 				       hrt_abstime isrs_time, uint16_t isrs_rcnt)
 {
 }
+
 static void input_capture_bind(unsigned channel, capture_callback_t callback, void *context)
 {
 	irqstate_t flags = enter_critical_section();

src/drivers/samv7/tone_alarm/tone_alarm.cpp

@@ -212,7 +212,7 @@ class ToneAlarm : public device::CDev
 {
 public:
 	ToneAlarm();
-	~ToneAlarm();
+	~ToneAlarm() = default;
 
 	virtual int		init();
 
@@ -355,10 +355,6 @@ ToneAlarm::ToneAlarm() :
 	_tune_names[TONE_HOME_SET] = "home_set";
 }
 
-ToneAlarm::~ToneAlarm()
-{
-}
-
 int
 ToneAlarm::init()
 {