onBindViewHolder remove extra allocation of empty payload

[Karloid]

Using mutableListOf() will lead to the allocation of a temporary garbage object on each onBindViewHolder without payload, which adds to the overall overhead.

We can easily avoid this.

And there is no need to keep MutableList in

override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int, payloads: MutableList<Any>)

because underlying RecyclerViewDelegate.onBindViewHolder has List in signature