pcm/PcmUtils: remove unused function PcmClampN()

src/pcm/PcmUtils.hxx

@@ -63,16 +63,4 @@ PcmClamp(U x)
 	return T(x);
 }
 
-/**
- * Check if the values in this buffer are within the range of the
- * provided bit size, and clamps them whenever necessary.
- */
-template<typename T, typename U, unsigned bits>
-static inline void
-PcmClampN(T *dest, const U *src, unsigned n)
-{
-	while (n-- > 0)
-		*dest++ = PcmClamp<T, U, bits>(*src++);
-}
-
 #endif