fix: purge confirmed txs from Dandelion stempool on block connect#392

DigiSwarm merged 2 commits intoDigiByte-Core:feature/digidollar-v1DigiByte-Core/digibyte:feature/digidollar-v1from

JohnnyLawDGB:fix/dandelion-stempool-ancestor-leakJohnnyLawDGB/digibyte:fix/dandelion-stempool-ancestor-leakCopy head branch name to clipboard