Fix PropTypes linting errors

[satyasaibhushan]

Nature of issue?

• Found a bug

Details about the bug:

• Web browser and version: Chrome 88.0.4324.150 (Official Build) (x86_64)
• Operating System: macOS Version 11.2.1
• Steps to reproduce this bug:

I know this issue is addressed recently in #1514 but the problem exists and is from a single file IDEView.jsx
It is a very small fix and I'd like to work on it

[catarak]

@satyasaibhushan go ahead and work on this!

[satyasaibhushan]

Hey @catarak ,
fixing this line to PropTypes.arrayOf(PropTypes.shape()) is sufficient. But, the either of editorAccessibility or lintMessages is not used in the code. Do you want me to adjust the line or delete the whole editorAccessibility from this file

[catarak]

@satyasaibhushan you're right! The component that uses these props, <EditorAccessibility>, got moved into <Editor>, so these PropTypes can be removed.