Describe the bug

Upgrading from version 0.21.4 to 0.22.0 fails to compile a TypeScript app.

To Reproduce

Have a code that looks like this

import axios from 'axios';

const func = () => {
  delete axios.defaults.headers.common.Authorization;
}

Request responses are also incorrectly inferred after this update. Instead of any, data will be set to Params.

import axios from 'axios';

export const request = async (params: Params): Promise<Response> => {
  const { data } = await axios.put('urlPath', params);
  return data;
};

Expected behavior

There should be no breaking changes as change log doesn't mention them.

Environment

• Axios Version [e.g. 0.18.0] 0.22.0
• Adapter [e.g. XHR/HTTP] -
• Browser [e.g. Chrome, Safari] -
• Browser Version [e.g. 22] -
• Node.js Version [e.g. 13.0.1] -
• OS: [e.g. iOS 12.1.0, OSX 10.13.4] -
• Additional Library Versions [e.g. React 16.7, React Native 0.58.0] React 17.0.2

Additional context/Screenshots

Add any other context about the problem here. If applicable, add screenshots to help explain.