fix: remove un-used imports and update coinswap sim-op

lstoken can be used as maxToken which is not registered as params. with no-op, we can proceed sim tests.

app/sim_test.go

@@ -3,8 +3,6 @@ package app
 import (
 	"encoding/json"
 	"fmt"
-	inflationtypes "github.com/Canto-Network/Canto/v7/x/inflation/types"
-	"math/rand"
 	"os"
 	"testing"
 

x/coinswap/simulation/operations.go

@@ -109,6 +109,14 @@ func SimulateMsgAddLiquidity(k keeper.Keeper, ak types.AccountKeeper, bk types.B
 			return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgAddLiquidity, "tokenDenom should not be liquidity token"), nil, err
 		}
 
+		params := k.GetParams(ctx)
+		if !params.MaxSwapAmount.AmountOf(maxToken.Denom).IsPositive() {
+			return simtypes.NoOpMsg(
+				types.ModuleName, types.TypeMsgAddLiquidity,
+				fmt.Sprintf("maxToken %s is not registered in max swap amount", maxToken.Denom),
+			), nil, err
+		}
+
 		if !maxToken.Amount.IsPositive() {
 			return simtypes.NoOpMsg(types.ModuleName, types.TypeMsgAddLiquidity, "maxToken must is positive"), nil, err
 		}