Cap fees to reasonable level by default

Signed-off-by: Jakub Sztandera <kubuxu@protocol.ai>

node/impl/full/mpool.go

@@ -8,9 +8,6 @@ import (
 	"go.uber.org/fx"
 	"golang.org/x/xerrors"
 
-	"github.com/filecoin-project/specs-actors/actors/abi"
-	"github.com/filecoin-project/specs-actors/actors/abi/big"
-
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/chain/messagepool"
 	"github.com/filecoin-project/lotus/chain/store"
@@ -115,27 +112,6 @@ func (a *MpoolAPI) MpoolPush(ctx context.Context, smsg *types.SignedMessage) (ci
 	return a.Mpool.Push(smsg)
 }
 
-func capGasFee(msg *types.Message, maxFee abi.TokenAmount) {
-	if maxFee.Equals(big.Zero()) {
-		return
-	}
-
-	gl := types.NewInt(uint64(msg.GasLimit))
-	totalFee := types.BigMul(msg.GasFeeCap, gl)
-	minerFee := types.BigMul(msg.GasPremium, gl)
-
-	if totalFee.LessThanEqual(maxFee) {
-		return
-	}
-
-	// scale chain/miner fee down proportionally to fit in our budget
-	// TODO: there are probably smarter things we can do here to optimize
-	//  message inclusion latency
-
-	msg.GasFeeCap = big.Div(maxFee, gl)
-	msg.GasPremium = big.Div(big.Div(big.Mul(minerFee, maxFee), totalFee), gl)
-}
-
 func (a *MpoolAPI) MpoolPushMessage(ctx context.Context, msg *types.Message, spec *api.MessageSendSpec) (*types.SignedMessage, error) {
 	{
 		fromA, err := a.Stmgr.ResolveToKeyAddress(ctx, msg.From, nil)