diff --git a/staging/src/k8s.io/apimachinery/pkg/runtime/serializer/json/json.go b/staging/src/k8s.io/apimachinery/pkg/runtime/serializer/json/json.go
index aadea27bfd5..9d17f09e54c 100644
--- a/staging/src/k8s.io/apimachinery/pkg/runtime/serializer/json/json.go
+++ b/staging/src/k8s.io/apimachinery/pkg/runtime/serializer/json/json.go
@@ -140,27 +140,7 @@ func (customNumberDecoder) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
 		}
 		iter.ReportError("DecodeNumber", err.Error())
 	default:
-		// init depth, if needed
-		if iter.Attachment == nil {
-			iter.Attachment = int(1)
-		}
-
-		// remember current depth
-		originalAttachment := iter.Attachment
-
-		// increment depth before descending
-		if i, ok := iter.Attachment.(int); ok {
-			iter.Attachment = i + 1
-			if i > 10000 {
-				iter.ReportError("parse", "exceeded max depth")
-				return
-			}
-		}
-
 		*(*interface{})(ptr) = iter.Read()
-
-		// restore current depth
-		iter.Attachment = originalAttachment
 	}
 }