Returns true if the pool with pool_id needs migration.
This can happen when the pallet-nomination-pools has switched to using strategy
DelegateStake but the pool
still has funds that were staked using the older strategy
TransferStake. Use
migrate_pool_to_delegate_stake
to migrate the pool.
Returns true if the pool with
pool_idneeds migration.This can happen when the
pallet-nomination-poolshas switched to using strategyDelegateStakebut the pool still has funds that were staked using the older strategy TransferStake. Usemigrate_pool_to_delegate_staketo migrate the pool.