chore: remove unnecessary condition (#15277)

store/iavl/store.go

@@ -281,11 +281,7 @@ func (st *Store) Export(version int64) (*iavl.Exporter, error) {
 	if !ok || tree == nil {
 		return nil, fmt.Errorf("iavl export failed: unable to fetch tree for version %v", version)
 	}
-	export, err := tree.Export()
-	if err != nil {
-		return nil, err
-	}
-	return export, nil
+	return tree.Export()
 }
 
 // Import imports an IAVL tree at the given version, returning an iavl.Importer for importing.

store/rootmulti/store.go

@@ -779,10 +779,6 @@ func (rs *Store) Snapshot(height uint64, protoWriter protoio.Writer) error {
 	for _, store := range stores {
 		rs.logger.Debug("starting snapshot", "store", store.name, "height", height)
 		exporter, err := store.Export(int64(height))
-		if exporter == nil {
-			rs.logger.Error("snapshot failed; exporter is nil", "store", store.name)
-			return err
-		}
 		if err != nil {
 			rs.logger.Error("snapshot failed; exporter error", "store", store.name, "err", err)
 			return err
@@ -807,7 +803,7 @@ func (rs *Store) Snapshot(height uint64, protoWriter protoio.Writer) error {
 			for {
 				node, err := exporter.Next()
 				if err == iavltree.ErrorExportDone {
-					rs.logger.Debug("Snapshot Done", "store", store.name, "nodeCount", nodeCount)
+					rs.logger.Debug("snapshot Done", "store", store.name, "nodeCount", nodeCount)
 					nodeCount = 0
 					break
 				} else if err != nil {