Function reap_stash 

pub fn reap_stash<T: Config>(stash: T::AccountId, _num_slashing_spans: u32)

Remove all data structures concerning a staker/stash once it is at a state where it can be considered dust in the staking system. The requirements are:

1. the total_balance of the stash is below the existential deposit.
2. or, the ledger.total of the stash is below the existential deposit.

The former can happen in cases like a slash; the latter when a fully unbonded account is still receiving staking rewards in RewardDestination::Staked.

The gate is intentionally the existential deposit and not min_chilled_bond: a governance change to MinValidatorBond / MinNominatorBond must not turn previously safe stashes into permissionlessly reapable ones. Accounts that fall below the new minimums after such a change should be chill_other-ed (which has a density gate and does not destroy the ledger), not reaped.

It can be called by anyone, as long as stash meets the above requirements.

Refunds the transaction fees upon successful execution.

Parameters

• stash: The stash account to be reaped.
• num_slashing_spans: Deprecated. This parameter is retained for backward compatibility. It no longer has any effect.

Warning: Doc-Only

This function is an automatically generated, and is doc-only, uncallable stub. See the real version in Pallet::reap_stash.