Revert "Generalize auth/types.StdSignature (#4507)" (#4512)

This reverts commit a32d5a46d7.

client/keys/import.go

@@ -3,9 +3,8 @@ package keys
 import (
 	"io/ioutil"
 
-	"github.com/spf13/cobra"
-
 	"github.com/cosmos/cosmos-sdk/client/input"
+	"github.com/spf13/cobra"
 )
 
 func importKeyCommand() *cobra.Command {

client/keys/list.go

@@ -1,9 +1,8 @@
 package keys
 
 import (
-	"github.com/spf13/cobra"
-
 	"github.com/cosmos/cosmos-sdk/client/flags"
+	"github.com/spf13/cobra"
 )
 
 func listKeysCmd() *cobra.Command {

client/keys/mnemonic_test.go

@@ -5,10 +5,9 @@ import (
 	"strings"
 	"testing"
 
+	"github.com/cosmos/cosmos-sdk/client/input"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
-
-	"github.com/cosmos/cosmos-sdk/client/input"
 )
 
 func Test_RunMnemonicCmdNormal(t *testing.T) {

client/keys/update.go

@@ -3,9 +3,8 @@ package keys
 import (
 	"fmt"
 
-	"github.com/spf13/cobra"
-
 	"github.com/cosmos/cosmos-sdk/client/input"
+	"github.com/spf13/cobra"
 )
 
 func updateKeyCommand() *cobra.Command {

client/utils/utils_test.go

@@ -100,7 +100,7 @@ func TestReadStdTxFromFile(t *testing.T) {
 
 	// Build a test transaction
 	fee := authtypes.NewStdFee(50000, sdk.Coins{sdk.NewInt64Coin("atom", 150)})
-	stdTx := authtypes.NewStdTx([]sdk.Msg{}, fee, nil, "foomemo")
+	stdTx := authtypes.NewStdTx([]sdk.Msg{}, fee, []authtypes.StdSignature{}, "foomemo")
 
 	// Write it to the file
 	encodedTx, _ := cdc.MarshalJSON(stdTx)
@@ -143,8 +143,8 @@ func TestValidateCmd(t *testing.T) {
 	}{
 		{"misspelled command", []string{"comission"}, true},
 		{"no command provided", []string{}, false},
-		{"help flag", []string{"commission", "--help"}, false},
-		{"shorthand help flag", []string{"commission", "-h"}, false},
+		{"help flag", []string{"comission", "--help"}, false},
+		{"shorthand help flag", []string{"comission", "-h"}, false},
 	}
 
 	for _, tt := range tests {
@@ -158,7 +158,7 @@ func TestValidateCmd(t *testing.T) {
 
 func compareEncoders(t *testing.T, expected sdk.TxEncoder, actual sdk.TxEncoder) {
 	msgs := []sdk.Msg{sdk.NewTestMsg(addr)}
-	tx := authtypes.NewStdTx(msgs, authtypes.StdFee{}, []sdk.Signature{}, "")
+	tx := authtypes.NewStdTx(msgs, authtypes.StdFee{}, []authtypes.StdSignature{}, "")
 
 	defaultEncoderBytes, err := expected(tx)
 	require.NoError(t, err)