refactor: remove unused types.CID

Author: hacdias

routing/http/types/ipfs.go

@@ -3,28 +3,9 @@ package types
 import (
 	"encoding/json"
 
-	"github.com/ipfs/boxo/routing/http/internal/drjson"
-	"github.com/ipfs/go-cid"
 	"github.com/multiformats/go-multiaddr"
 )
 
-type CID struct{ cid.Cid }
-
-func (c *CID) MarshalJSON() ([]byte, error) { return drjson.MarshalJSONBytes(c.String()) }
-func (c *CID) UnmarshalJSON(b []byte) error {
-	var s string
-	err := json.Unmarshal(b, &s)
-	if err != nil {
-		return err
-	}
-	decodedCID, err := cid.Decode(s)
-	if err != nil {
-		return err
-	}
-	c.Cid = decodedCID
-	return nil
-}
-
 type Multiaddr struct{ multiaddr.Multiaddr }
 
 func (m *Multiaddr) UnmarshalJSON(b []byte) error {