fix: lint issueson btc utils

x/btccheckpoint/keeper/submissions.go

@@ -3,9 +3,10 @@ package keeper
 import (
 	"context"
 	"fmt"
-	sdk "github.com/cosmos/cosmos-sdk/types"
 	"math"
 
+	sdk "github.com/cosmos/cosmos-sdk/types"
+
 	"cosmossdk.io/store/prefix"
 	bbn "github.com/babylonlabs-io/babylon/types"
 	"github.com/babylonlabs-io/babylon/x/btccheckpoint/types"
@@ -123,11 +124,11 @@ func (k Keeper) checkSubmissionStatus(ctx context.Context, info *types.Submissio
 	subDepth := info.SubmissionDepth()
 	if subDepth >= k.GetParams(ctx).CheckpointFinalizationTimeout {
 		return types.Finalized
-	} else if subDepth >= k.GetParams(ctx).BtcConfirmationDepth {
+	}
+	if subDepth >= k.GetParams(ctx).BtcConfirmationDepth {
 		return types.Confirmed
-	} else {
-		return types.Submitted
 	}
+	return types.Submitted
 }
 
 func (k Keeper) GetSubmissionBtcInfo(ctx context.Context, sk types.SubmissionKey) (*types.SubmissionBtcInfo, error) {

x/btccheckpoint/types/btcutils.go

@@ -81,11 +81,11 @@ func createBranch(nodes []*chainhash.Hash, numfLeafs uint, idx uint) []*chainhas
 		branch = append(branch, nodes[i+j])
 
 		// divide index by 2 as there are two times less nodes on second level
-		index = index >> 1
+		index >>= 1
 
 		// after getting node at this level we move to next one by advancing i by
 		// the size of the current level
-		i = i + size
+		i += size
 
 		// update the size to the next level size i.e (current level size / 2)
 		// + 1 is needed to correctly account for cases that the last node of the level