refactor: replace MinCoins with sdk coins.Min() (#7127)

* refactor: replace MinCoins with sdk coins.Min()

* fix: remove unused import

osmoutils/coin_helper.go

@@ -7,21 +7,6 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
-// MinCoins returns the minimum of each denom between both coins.
-// For now it assumes they have the same denoms.
-// TODO: Replace with method in SDK once we update our version
-func MinCoins(coinsA sdk.Coins, coinsB sdk.Coins) sdk.Coins {
-	resCoins := sdk.Coins{}
-	for i, coin := range coinsA {
-		if coinsB[i].Amount.GT(coin.Amount) {
-			resCoins = append(resCoins, coin)
-		} else {
-			resCoins = append(resCoins, coinsB[i])
-		}
-	}
-	return resCoins
-}
-
 // SubDecCoinArrays subtracts the contents of the second param from the first (decCoinsArrayA - decCoinsArrayB)
 // Note that this takes in two _arrays_ of DecCoins, meaning that each term itself is of type DecCoins (i.e. an array of DecCoin).
 func SubDecCoinArrays(decCoinsArrayA []sdk.DecCoins, decCoinsArrayB []sdk.DecCoins) ([]sdk.DecCoins, error) {

x/gamm/simulation/sim_msgs.go

@@ -9,7 +9,6 @@ import (
 	legacysimulationtype "github.com/cosmos/cosmos-sdk/types/simulation"
 
 	"github.com/osmosis-labs/osmosis/osmomath"
-	"github.com/osmosis-labs/osmosis/osmoutils"
 	"github.com/osmosis-labs/osmosis/v21/simulation/simtypes"
 	"github.com/osmosis-labs/osmosis/v21/x/gamm/keeper"
 	balancertypes "github.com/osmosis-labs/osmosis/v21/x/gamm/pool-models/balancer"
@@ -36,7 +35,7 @@ func RandomJoinPoolMsg(k keeper.Keeper, sim *simtypes.SimCtx, ctx sdk.Context) (
 	}
 
 	// cap joining pool to the pool liquidity
-	tokenIn = osmoutils.MinCoins(tokenIn, pool.GetTotalPoolLiquidity(ctx))
+	tokenIn = tokenIn.Min(pool.GetTotalPoolLiquidity(ctx))
 
 	// TODO: Fix API so this is a one liner, pool.CalcJoinPoolNoSwapShares()
 	minShareOutAmt, err := deriveRealMinShareOutAmt(ctx, tokenIn, pool)
@@ -195,7 +194,7 @@ func RandomSwapExactAmountOut(k keeper.Keeper, sim *simtypes.SimCtx, ctx sdk.Con
 	}
 
 	// set the subset of coins to be upper-bound to the minimum between the address and the pool itself
-	randomCoinInSubset := osmoutils.MinCoins(sdk.NewCoins(coinIn), sdk.NewCoins(accCoin))
+	randomCoinInSubset := sdk.NewCoins(coinIn).Min(sdk.NewCoins(accCoin))
 
 	// utilize CalcOutAmtGivenIn to calculate tokenOut and use tokenOut to calculate tokenInMax
 	tokenOut, err := pool.CalcOutAmtGivenIn(ctx, randomCoinInSubset, coinOut.Denom, pool.GetSpreadFactor(ctx))
@@ -241,7 +240,7 @@ func RandomJoinSwapExternAmountIn(k keeper.Keeper, sim *simtypes.SimCtx, ctx sdk
 	}
 
 	// cap joining pool to the pool liquidity
-	newTokenIn := osmoutils.MinCoins(sdk.NewCoins(coinIn), sdk.NewCoins(tokenIn))
+	newTokenIn := sdk.NewCoins(coinIn).Min(sdk.NewCoins(tokenIn))
 
 	// calc shares out with tokenIn
 	minShareOutAmt, _, err := pool.CalcJoinPoolShares(ctx, newTokenIn, pool.GetSpreadFactor(ctx))
@@ -274,7 +273,7 @@ func RandomJoinSwapShareAmountOut(k keeper.Keeper, sim *simtypes.SimCtx, ctx sdk
 	}
 
 	// cap joining pool to the pool liquidity
-	newTokenIn := osmoutils.MinCoins(sdk.NewCoins(coinIn), sdk.NewCoins(tokenIn))
+	newTokenIn := sdk.NewCoins(coinIn).Min(sdk.NewCoins(tokenIn))
 
 	// calc shares out with tokenIn
 	minShareOutAmt, _, err := pool.CalcJoinPoolShares(ctx, newTokenIn, pool.GetSpreadFactor(ctx))