Apply suggestions from code review

Co-authored-by: Marcin Rataj <[email protected]>

blockstore_proxy.go

@@ -50,7 +50,7 @@ func (ps *proxyBlockStore) fetch(ctx context.Context, c cid.Cid) (blocks.Block,
 	defer resp.Body.Close()
 
 	if resp.StatusCode != http.StatusOK {
-		return nil, fmt.Errorf("unexpected status from remote gateway: %s", resp.Status)
+		return nil, fmt.Errorf("http error from block gateway: %s", resp.Status)
 	}
 
 	rb, err := io.ReadAll(resp.Body)
@@ -64,7 +64,6 @@ func (ps *proxyBlockStore) fetch(ctx context.Context, c cid.Cid) (blocks.Block,
 			return nil, blocks.ErrWrongHash
 		}
 		if !nc.Equals(c) {
-			fmt.Printf("got %s vs %s\n", nc, c)
 			return nil, blocks.ErrWrongHash
 		}
 	}