consensus: refactor FinalizeAndAssemble to use Finalize (#21993)

consensus/clique/clique.go

@@ -561,9 +561,8 @@ func (c *Clique) Finalize(chain consensus.ChainHeaderReader, header *types.Heade
 // FinalizeAndAssemble implements consensus.Engine, ensuring no uncles are set,
 // nor block rewards given, and returns the final block.
 func (c *Clique) FinalizeAndAssemble(chain consensus.ChainHeaderReader, header *types.Header, state *state.StateDB, txs []*types.Transaction, uncles []*types.Header, receipts []*types.Receipt) (*types.Block, error) {
-	// No block rewards in PoA, so the state remains as is and uncles are dropped
-	header.Root = state.IntermediateRoot(chain.Config().IsEIP158(header.Number))
-	header.UncleHash = types.CalcUncleHash(nil)
+	// Finalize block
+	c.Finalize(chain, header, state, txs, uncles)
 
 	// Assemble and return the final block for sealing
 	return types.NewBlock(header, txs, nil, receipts, new(trie.Trie)), nil

consensus/ethash/consensus.go

@@ -584,9 +584,8 @@ func (ethash *Ethash) Finalize(chain consensus.ChainHeaderReader, header *types.
 // FinalizeAndAssemble implements consensus.Engine, accumulating the block and
 // uncle rewards, setting the final state and assembling the block.
 func (ethash *Ethash) FinalizeAndAssemble(chain consensus.ChainHeaderReader, header *types.Header, state *state.StateDB, txs []*types.Transaction, uncles []*types.Header, receipts []*types.Receipt) (*types.Block, error) {
-	// Accumulate any block and uncle rewards and commit the final state root
-	accumulateRewards(chain.Config(), state, header, uncles)
-	header.Root = state.IntermediateRoot(chain.Config().IsEIP158(header.Number))
+	// Finalize block
+	ethash.Finalize(chain, header, state, txs, uncles)
 
 	// Header seems complete, assemble into a block and return
 	return types.NewBlock(header, txs, uncles, receipts, new(trie.Trie)), nil