fluff_m0: don't exclude portb pins explicitly

Author: deshipu

ports/atmel-samd/boards/fluff_m0/mpconfigboard.h

@@ -18,27 +18,3 @@
 // USB is always used internally so skip the pin objects for it.
 #define IGNORE_PIN_PA24     1
 #define IGNORE_PIN_PA25     1
-
-// There is no port B
-#define IGNORE_PIN_PB00     1
-#define IGNORE_PIN_PB01     1
-#define IGNORE_PIN_PB02     1
-#define IGNORE_PIN_PB03     1
-#define IGNORE_PIN_PB04     1
-#define IGNORE_PIN_PB05     1
-#define IGNORE_PIN_PB06     1
-#define IGNORE_PIN_PB07     1
-#define IGNORE_PIN_PB08     1
-#define IGNORE_PIN_PB09     1
-#define IGNORE_PIN_PB10     1
-#define IGNORE_PIN_PB11     1
-#define IGNORE_PIN_PB12     1
-#define IGNORE_PIN_PB13     1
-#define IGNORE_PIN_PB14     1
-#define IGNORE_PIN_PB15     1
-#define IGNORE_PIN_PB16     1
-#define IGNORE_PIN_PB17     1
-#define IGNORE_PIN_PB22     1
-#define IGNORE_PIN_PB23     1
-#define IGNORE_PIN_PB30     1
-#define IGNORE_PIN_PB31     1