This PR is introducing relaxed rules for transaction delivery check.
Unlike persistent modifiers, non-delivery for a transaction is not a reason to request it again and penalize a peer for non-delivery, as the transaction can be removed for a good reason from other peer's mempool.
Coverage remained the same at 46.984% when pulling 01d4efff9abf6122262e547b1579bf8564d0d40f on tx-delivery into 940842af26768fafdec749da19f397490274204d on master.
This PR is introducing relaxed rules for transaction delivery check.
Unlike persistent modifiers, non-delivery for a transaction is not a reason to request it again and penalize a peer for non-delivery, as the transaction can be removed for a good reason from other peer's mempool.