bcachefs: Kill dead code extent_save()

	k->size = new_size;

}

/*

 * In extent_sort_fix_overlapping(), insert_fixup_extent(),

 * extent_merge_inline() - we're modifying keys in place that are packed. To do

 * that we have to unpack the key, modify the unpacked key - then this

 * copies/repacks the unpacked to the original as necessary.

 */

static inline void extent_save(struct btree *b, struct bkey_packed *dst,

			       struct bkey *src)

{

	struct bkey_format *f = &b->format;

	struct bkey_i *dst_unpacked;

	if ((dst_unpacked = packed_to_bkey(dst)))

		dst_unpacked->k = *src;

	else

		BUG_ON(!bch2_bkey_pack_key(dst, src, f));

}

#endif /* _BCACHEFS_EXTENTS_H */