refactor: removing unused go-sdk keyring funcs

gosdk/keys.go

@@ -4,8 +4,6 @@ import (
 	"fmt"
 
 	"github.com/cosmos/cosmos-sdk/crypto/keyring"
-	"github.com/cosmos/cosmos-sdk/crypto/keys/secp256k1"
-	cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
 	sdktestutil "github.com/cosmos/cosmos-sdk/testutil"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 
@@ -22,7 +20,8 @@ func NewKeyring() keyring.Keyring {
 	return keyring.NewInMemory(EncodingConfig().Codec)
 }
 
-// TODO: Is this needed?
+// TODO: Is it necessary to add support for interacting with local file system
+// keyring?
 // import (
 //   "bufio"
 //   "os"
@@ -41,40 +40,6 @@ func NewKeyring() keyring.Keyring {
 // 	)
 // }
 
-func PrivKeyFromMnemonic(
-	kring keyring.Keyring, mnemonic string, keyName string,
-) (cryptotypes.PrivKey, sdk.AccAddress, error) {
-	algo := hd.Secp256k1
-	overwrite := true
-	addr, secret, err := sdktestutil.GenerateSaveCoinKey(
-		kring, keyName, mnemonic, overwrite, algo,
-	)
-	if err != nil {
-		return &secp256k1.PrivKey{}, sdk.AccAddress{}, err
-	}
-	privKey := secp256k1.GenPrivKeyFromSecret([]byte(secret))
-	return privKey, addr, err
-}
-
-func CreateSigner(
-	mnemonic string,
-	kring keyring.Keyring,
-	keyName string,
-) (kringRecord *keyring.Record, privKey cryptotypes.PrivKey, err error) {
-	privKey, _, err = PrivKeyFromMnemonic(kring, mnemonic, keyName)
-	if err != nil {
-		return kringRecord, privKey, err
-	}
-	kringRecord, err = CreateSignerFromPrivKey(privKey, keyName)
-	return kringRecord, privKey, err
-}
-
-func CreateSignerFromPrivKey(
-	privKey cryptotypes.PrivKey, keyName string,
-) (*keyring.Record, error) {
-	return keyring.NewLocalRecord(keyName, privKey, privKey.PubKey())
-}
-
 func AddSignerToKeyringSecp256k1(
 	kring keyring.Keyring, mnemonic string, keyName string,
 ) (sdk.AccAddress, error) {