Minor fixes

- rely on HAL for RO pins and max pins
- remove isPinDefined() and do clash check inline
- JS fix to use HAL max pins

wled00/pin_manager.h

@@ -113,7 +113,6 @@ class PinManagerClass {
   bool isPinOk(byte gpio, bool output = true) const;
   
   static bool isReadOnlyPin(byte gpio);
-  static bool isPinDefined(const byte gpio, const uint8_t* pins, const unsigned index = 255);
 
   PinOwner getPinOwner(byte gpio) const;