Remove unnecessary definition

Author: lucasssvaz

cores/esp32/cbuf.h

@@ -32,7 +32,6 @@
 typedef struct RingbufferDefinition Ringbuffer_t;
 typedef BaseType_t (*CheckItemFitsFunction_t)(Ringbuffer_t *pxRingbuffer, size_t xItemSize);
 typedef void (*CopyItemFunction_t)(Ringbuffer_t *pxRingbuffer, const uint8_t *pcItem, size_t xItemSize);
-typedef BaseType_t (*CheckItemAvailFunction_t) (Ringbuffer_t *pxRingbuffer);
 typedef void *(*GetItemFunction_t)(Ringbuffer_t *pxRingbuffer, BaseType_t *pxIsSplit, size_t xMaxSize, size_t *pxItemSize);
 typedef void (*ReturnItemFunction_t)(Ringbuffer_t *pxRingbuffer, uint8_t *pvItem);
 typedef size_t (*GetCurMaxSizeFunction_t)(Ringbuffer_t *pxRingbuffer);