Revert "Add support for signing pre cel2 DynamicFeeTxs (#176)" (#179)

This reverts commit 4a67833.

core/types/celo_transaction_signing_forks.go

@@ -64,11 +64,6 @@ func (c *cel2) txFuncs(tx *Transaction) *txFuncs {
 	switch {
 	case t == LegacyTxType && tx.IsCeloLegacy():
 		return deprecatedTxFuncs
-	case t == DynamicFeeTxType:
-		// We deprecate celo support of the DynamicFeeTxType in the cel2 fork
-		// since at this point it will be supported by the upstream London
-		// hardfork.
-		return deprecatedTxFuncs
 	case t == CeloDynamicFeeTxType:
 		return deprecatedTxFuncs
 	}
@@ -102,15 +97,6 @@ func (c *celoLegacy) txFuncs(tx *Transaction) *txFuncs {
 			return celoLegacyProtectedTxFuncs
 		}
 		return celoLegacyUnprotectedTxFuncs
-	case t == DynamicFeeTxType:
-		// We handle the dynamic fee tx type here because we need to handle
-		// migrated dynamic fee txs. These were enabeled in celo in the Espresso
-		// hardfork, which doesn't have any analogue in op-geth. Even though
-		// op-geth does enable support for dynamic fee txs in the London
-		// hardfork (which we set to the cel2 block) that fork contains a lot of
-		// changes that were not part of Espresso. So instead we handle
-		// DynamicFeeTxTypes ocurring before the cel2 block here.
-		return dynamicFeeTxFuncs
 	case t == CeloDynamicFeeTxV2Type:
 		return celoDynamicFeeTxV2Funcs
 	case t == CeloDynamicFeeTxType:

core/types/celo_transaction_signing_tx_funcs.go

@@ -61,18 +61,6 @@ var (
 		},
 	}
 
-	dynamicFeeTxFuncs = &txFuncs{
-		hash: func(tx *Transaction, chainID *big.Int) common.Hash {
-			return NewLondonSigner(chainID).Hash(tx)
-		},
-		signatureValues: func(tx *Transaction, sig []byte, signerChainID *big.Int) (r *big.Int, s *big.Int, v *big.Int, err error) {
-			return NewLondonSigner(signerChainID).SignatureValues(tx, sig)
-		},
-		sender: func(tx *Transaction, hashFunc func(tx *Transaction, chainID *big.Int) common.Hash, signerChainID *big.Int) (common.Address, error) {
-			return NewLondonSigner(signerChainID).Sender(tx)
-		},
-	}
-
 	celoDynamicFeeTxFuncs = &txFuncs{
 		hash: func(tx *Transaction, chainID *big.Int) common.Hash {
 			return prefixedRlpHash(