AP_Notify: remove code protected by PX4 defines, correct comments

libraries/AP_Notify/OreoLED_I2C.cpp

@@ -425,7 +425,7 @@ void OreoLED_I2C::boot_leds(void)
     }
 }
 
-// update_timer - called by scheduler and updates PX4 driver with commands
+// update_timer - called by scheduler and updates driver with commands
 void OreoLED_I2C::update_timer(void)
 {
     WITH_SEMAPHORE(_sem);
@@ -440,7 +440,7 @@ void OreoLED_I2C::update_timer(void)
         boot_leds();
     }
 
-    // send a sync every 4.1s. The PX4 driver uses 4ms, but using
+    // send a sync every 4.1s. The driver uses 4ms, but using
     // exactly 4ms does not work. It seems that the oreoled firmware
     // relies on the inaccuracy of the NuttX scheduling for this to
     // work, and exactly 4ms from ChibiOS causes syncronisation to

libraries/AP_Notify/OreoLED_I2C.h

@@ -88,7 +88,7 @@ private:
         OREOLED_PARAM_ENUM_COUNT
     };
 
-    // update_timer - called by scheduler and updates PX4 driver with commands
+    // update_timer - called by scheduler and updates driver with commands
     void update_timer(void);
 
     // set_rgb - set color as a combination of red, green and blue values for one or all LEDs, pattern defaults to solid color

libraries/AP_Notify/PixRacerLED.cpp

@@ -15,7 +15,7 @@
 
 #include "PixRacerLED.h"
 
-#if CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_PX4_V4 || CONFIG_HAL_BOARD == HAL_BOARD_CHIBIOS
+#if CONFIG_HAL_BOARD == HAL_BOARD_CHIBIOS
 
 #ifndef HAL_GPIO_A_LED_PIN
 #define HAL_GPIO_A_LED_PIN        -1

libraries/AP_Notify/ToneAlarm.h

@@ -1,5 +1,5 @@
 /*
- *  ToneAlarm PX4 driver
+ *  ToneAlarm driver
  */
 /*
  *   This program is free software: you can redistribute it and/or modify