Add item DataComponent implements (part 2)

level/component/repaircost.go

@@ -1,28 +1,14 @@
 package component
 
-import (
-	"io"
-
-	pk "github.com/Tnze/go-mc/net/packet"
-)
+import pk "github.com/Tnze/go-mc/net/packet"
 
 var _ DataComponent = (*RepairCost)(nil)
 
 type RepairCost struct {
-	Cost pk.VarInt
+	pk.VarInt
 }
 
 // ID implements DataComponent.
 func (RepairCost) ID() string {
 	return "minecraft:repair_cost"
 }
-
-// ReadFrom implements DataComponent.
-func (r *RepairCost) ReadFrom(reader io.Reader) (n int64, err error) {
-	return r.Cost.ReadFrom(reader)
-}
-
-// WriteTo implements DataComponent.
-func (r *RepairCost) WriteTo(writer io.Writer) (n int64, err error) {
-	return r.Cost.WriteTo(writer)
-}