refactor!: rm GetSignBytes (#16062)

testutil/sims/state_helpers.go

@@ -204,11 +204,11 @@ func AppStateRandomizedFn(
 		initialStake       math.Int
 	)
 	appParams.GetOrGenerate(
-		cdc, StakePerAccount, &initialStake, r,
+		StakePerAccount, &initialStake, r,
 		func(r *rand.Rand) { initialStake = math.NewInt(r.Int63n(1e12)) },
 	)
 	appParams.GetOrGenerate(
-		cdc, InitiallyBondedValidators, &numInitiallyBonded, r,
+		InitiallyBondedValidators, &numInitiallyBonded, r,
 		func(r *rand.Rand) { numInitiallyBonded = int64(r.Intn(300)) },
 	)
 

testutil/testdata/tx.go

@@ -1,7 +1,6 @@
 package testdata
 
 import (
-	"encoding/json"
 	"testing"
 
 	"gotest.tools/v3/assert"
@@ -78,14 +77,6 @@ func NewTestMsg(addrs ...sdk.AccAddress) *TestMsg {
 
 var _ sdk.Msg = (*TestMsg)(nil)
 
-func (msg *TestMsg) GetSignBytes() []byte {
-	bz, err := json.Marshal(msg.Signers)
-	if err != nil {
-		panic(err)
-	}
-	return sdk.MustSortJSON(bz)
-}
-
 func (msg *TestMsg) GetSigners() []sdk.AccAddress {
 	signers := make([]sdk.AccAddress, 0, len(msg.Signers))
 	for _, addr := range msg.Signers {