imp(evm): rename RejectUnprotectedTx to AllowUnprotectedTxs (#1142)

* imp(evm): rename RejectUnprotectedTx to AllowUnprotectedTxs

* changelog

proto/ethermint/evm/v1/evm.proto

@@ -24,8 +24,9 @@ message Params {
     (gogoproto.moretags) = "yaml:\"chain_config\"",
     (gogoproto.nullable) = false
   ];
-  // reject replay-unprotected transactions
-  bool reject_unprotected_tx = 6;
+  // Allow unprotected transactions defines if replay-protected (i.e non EIP155 
+  // signed) transactions can be executed on the state machine.
+  bool allow_unprotected_txs = 6;
 }
 
 // ChainConfig defines the Ethereum ChainConfig parameters using *sdk.Int values

proto/ethermint/evm/v1/tx.proto

@@ -36,7 +36,8 @@ message MsgEthereumTx {
 }
 
 // LegacyTx is the transaction data of regular Ethereum transactions.
-// NOTE: All non-protected transactions (i.e non EIP155 signed) will fail if the RejectUnprotectedTx parameter is enabled. 
+// NOTE: All non-protected transactions (i.e non EIP155 signed) will fail if the
+// AllowUnprotectedTxs parameter is disabled. 
 message LegacyTx {
   option (gogoproto.goproto_getters) = false;
   option (cosmos_proto.implements_interface) = "TxData";