remove unused chainIDmetrics() (#3992)

chainservice/chainservice.go

@@ -7,14 +7,12 @@ package chainservice
 
 import (
 	"context"
-	"strconv"
 
 	"github.com/libp2p/go-libp2p-core/peer"
 	"github.com/pkg/errors"
 	"github.com/prometheus/client_golang/prometheus"
 	"google.golang.org/protobuf/proto"
 
-	"github.com/iotexproject/iotex-address/address"
 	"github.com/iotexproject/iotex-election/committee"
 	"github.com/iotexproject/iotex-proto/golang/iotexrpc"
 	"github.com/iotexproject/iotex-proto/golang/iotextypes"
@@ -41,20 +39,6 @@ import (
 )
 
 var (
-	_apiCallWithChainIDMtc = prometheus.NewCounterVec(
-		prometheus.CounterOpts{
-			Name: "iotex_apicall_chainid_metrics",
-			Help: "API call ChainID Statistics",
-		},
-		[]string{"chain_id"},
-	)
-	_apiCallWithOutChainIDMtc = prometheus.NewCounterVec(
-		prometheus.CounterOpts{
-			Name: "iotex_apicall_nochainid_metrics",
-			Help: "API call Without ChainID Statistics",
-		},
-		[]string{"sender", "recipient"},
-	)
 	_blockchainFullnessMtc = prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name: "iotex_blockchain_fullness",
@@ -65,8 +49,6 @@ var (
 )
 
 func init() {
-	prometheus.MustRegister(_apiCallWithChainIDMtc)
-	prometheus.MustRegister(_apiCallWithOutChainIDMtc)
 	prometheus.MustRegister(_blockchainFullnessMtc)
 }
 
@@ -119,34 +101,9 @@ func (cs *ChainService) HandleAction(ctx context.Context, actPb *iotextypes.Acti
 	if err != nil {
 		log.L().Debug(err.Error())
 	}
-	chainIDmetrics(act)
 	return err
 }
 
-func chainIDmetrics(act action.SealedEnvelope) {
-	chainID := strconv.FormatUint(uint64(act.ChainID()), 10)
-	if act.ChainID() > 0 {
-		_apiCallWithChainIDMtc.WithLabelValues(chainID).Inc()
-	} else {
-		recipient, _ := act.Destination()
-		//it will be empty for staking action, change string to staking in such case
-		if recipient == "" {
-			act, ok := act.Action().(action.EthCompatibleAction)
-			if ok {
-				if ethTx, err := act.ToEthTx(0); err == nil && ethTx.To() != nil {
-					if add, err := address.FromHex(ethTx.To().Hex()); err == nil {
-						recipient = add.String()
-					}
-				}
-			}
-			if recipient == "" {
-				recipient = "staking"
-			}
-		}
-		_apiCallWithOutChainIDMtc.WithLabelValues(act.SenderAddress().String(), recipient).Inc()
-	}
-}
-
 // HandleBlock handles incoming block request.
 func (cs *ChainService) HandleBlock(ctx context.Context, peer string, pbBlock *iotextypes.Block) error {
 	blk, err := block.NewDeserializer(cs.chain.EvmNetworkID()).FromBlockProto(pbBlock)