migrate all JSON to new JSON encoder (#4975)

Uses new JSON encoder in #4955 for all JSON. Branched off of #4968.

cmd/tendermint/commands/codec.go

@@ -1,13 +0,0 @@
-package commands
-
-import (
-	amino "github.com/tendermint/go-amino"
-
-	cryptoamino "github.com/tendermint/tendermint/crypto/encoding/amino"
-)
-
-var cdc = amino.NewCodec()
-
-func init() {
-	cryptoamino.RegisterAmino(cdc)
-}

cmd/tendermint/commands/gen_validator.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	tmjson "github.com/tendermint/tendermint/libs/json"
 	"github.com/tendermint/tendermint/privval"
 )
 
@@ -18,7 +19,7 @@ var GenValidatorCmd = &cobra.Command{
 
 func genValidator(cmd *cobra.Command, args []string) {
 	pv := privval.GenFilePV("", "")
-	jsbz, err := cdc.MarshalJSON(pv)
+	jsbz, err := tmjson.Marshal(pv)
 	if err != nil {
 		panic(err)
 	}

cmd/tendermint/commands/probe_upnp.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	tmjson "github.com/tendermint/tendermint/libs/json"
 	"github.com/tendermint/tendermint/p2p/upnp"
 )
 
@@ -21,7 +22,7 @@ func probeUpnp(cmd *cobra.Command, args []string) error {
 		fmt.Println("Probe failed: ", err)
 	} else {
 		fmt.Println("Probe success!")
-		jsonBytes, err := cdc.MarshalJSON(capabilities)
+		jsonBytes, err := tmjson.Marshal(capabilities)
 		if err != nil {
 			return err
 		}

cmd/tendermint/commands/show_validator.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	tmjson "github.com/tendermint/tendermint/libs/json"
 	tmos "github.com/tendermint/tendermint/libs/os"
 	"github.com/tendermint/tendermint/privval"
 )
@@ -29,7 +30,7 @@ func showValidator(cmd *cobra.Command, args []string) error {
 		return fmt.Errorf("can't get pubkey: %w", err)
 	}
 
-	bz, err := cdc.MarshalJSON(pubKey)
+	bz, err := tmjson.Marshal(pubKey)
 	if err != nil {
 		return fmt.Errorf("failed to marshal private validator pubkey: %w", err)
 	}