Remove last improper uses of var in Web/API

[teoli2003]

Most were in a comment or in old polyfills for IndexedDB (no more needed).

Fixes #16662

[github-actions[bot]]

Preview URLs

• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/CSS_Object_Model/Using_dynamic_styling_information
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Headers/delete
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Headers
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/IDBCursor/delete
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/IDBFactory/open
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/IDBFactory
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/IDBVersionChangeEvent/newVersion
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/IDBVersionChangeEvent
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/IndexedDB_API/Using_IndexedDB
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/SpeechGrammarList/item
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/StyleSheet/media
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Web_Workers_API/Using_web_workers
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Window/close
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Window/frames
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Window/locationbar
• https://pr19344.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Window/window

Flaws

Note! 14 documents with no flaws that don't need to be listed. 🎉

URL: /en-US/docs/Web/API/Window/window Title: Window.window on GitHub Flaw count: 1

• broken_links:
  • Can't resolve /en-US/docs/Mozilla/JavaScript_code_modules

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URL: /en-US/docs/Web/API/Headers Title: Headers on GitHub Flaw count: 1

• macros:
  • /en-US/docs/Web/API/Headers/forEach does not exist

External URLs

URL: /en-US/docs/Web/API/StyleSheet/media Title: StyleSheet.media on GitHub

No new external URLs

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URL: /en-US/docs/Web/API/SpeechGrammarList/item Title: SpeechGrammarList.item() on GitHub

No new external URLs

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URL: /en-US/docs/Web/API/Window/window Title: Window.window on GitHub

No new external URLs

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URL: /en-US/docs/Web/API/Window/close Title: Window.close() on GitHub

No new external URLs

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URL: /en-US/docs/Web/API/Window/locationbar Title: Window.locationbar on GitHub

No new external URLs

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URL: /en-US/docs/Web/API/Window/frames Title: Window.frames on GitHub

No new external URLs

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URL: /en-US/docs/Web/API/IndexedDB_API/Using_IndexedDB Title: Using IndexedDB on GitHub

No new external URLs

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URL: /en-US/docs/Web/API/IDBCursor/delete Title: IDBCursor.delete() on GitHub

No new external URLs

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URL: /en-US/docs/Web/API/CSS_Object_Model/Using_dynamic_styling_information Title: Using dynamic styling information on GitHub

No new external URLs

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URL: /en-US/docs/Web/API/IDBVersionChangeEvent Title: IDBVersionChangeEvent on GitHub

No new external URLs

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URL: /en-US/docs/Web/API/IDBVersionChangeEvent/newVersion Title: IDBVersionChangeEvent.newVersion on GitHub

No new external URLs

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URL: /en-US/docs/Web/API/IDBFactory Title: IDBFactory on GitHub

• https://mdn.github.io/to-do-notifications/ (2 times)

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URL: /en-US/docs/Web/API/IDBFactory/open Title: IDBFactory.open() on GitHub

• https://mdn.github.io/to-do-notifications/ (2 times)

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URL: /en-US/docs/Web/API/Web_Workers_API/Using_web_workers Title: Using Web Workers on GitHub

No new external URLs

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URL: /en-US/docs/Web/API/Headers Title: Headers on GitHub

No new external URLs

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URL: /en-US/docs/Web/API/Headers/delete Title: Headers.delete() on GitHub

No new external URLs