diff --git a/lib/metadata.json b/lib/metadata.json
index 60afec4a..ec8646e1 100644
--- a/lib/metadata.json
+++ b/lib/metadata.json
@@ -1327,162 +1327,26 @@
"required": false,
"description": "Indicates whether the media should start playing from the start when it's finished."
},
- "preload": {
- "type": {
- "name": "string"
- },
- "required": false,
- "description": "Indicates whether the whole resource, parts of it or nothing should be preloaded."
- },
- "src": {
- "type": {
- "name": "string"
- },
- "required": false,
- "description": "The URL of the embeddable content."
- },
- "accessKey": {
- "type": {
- "name": "string"
- },
- "required": false,
- "description": "Defines a keyboard shortcut to activate or add focus to the element."
- },
- "className": {
- "type": {
- "name": "string"
- },
- "required": false,
- "description": "Often used with CSS to style elements with common properties."
- },
- "contentEditable": {
- "type": {
- "name": "string"
- },
- "required": false,
- "description": "Indicates whether the element's content is editable."
- },
- "contextMenu": {
- "type": {
- "name": "string"
- },
- "required": false,
- "description": "Defines the ID of a