Add delete multiple pieces in one go

[hugomrdias]

our eip712 SchedulePieceRemovals supports deleting multiple pieces but curio pdp api only support deleting one by one

[BigLep]

@hugomrdias : is this needed for GA?

[hugomrdias]

@hugomrdias : is this needed for GA?

no

[akronim26]

Hey @hugomrdias, can I work on this?

[BigLep]

Hey @hugomrdias, can I work on this?

You can work on it, but given it isn't a GA priority, PRs here will likely sit. I don't have immediate other things to point you at yet that are higher priority. FOC (view) lists the items we are tracking for GA (or https://github.com/FilOzone/synapse-sdk/milestone/7 for this repo).