#### 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

```ts
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`.

```ts
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.

Gruntfile.js
files: ['lib/**/*.js', 'test/**/*.js', '!test/typescript/axios.js', '!test/typescript/out.js'],
        tasks: ['test']
      }
    },
    webpack: require('./webpack.config.js')
  });
  grunt.registerMultiTask('package2bower', 'Sync package.json to bower.json', function() {
    var npm = grunt.file.readJSON('package.json');
    var bower = grunt.file.readJSON('bower.json');
    var fields = this.data.fields || [];
    for (var i = 0, l = fields.length; i < l; i++) {
      var field = fields[i];
      bower[field] = npm[field];
    }
    grunt.file.write('bower.json', JSON.stringify(bower, null, 2));
  });
  grunt.registerMultiTask('package2env', 'Sync package.json to env.json', function() {
    var npm = grunt.file.readJSON('package.json');
    grunt.file.write('./lib/env/data.js', [
      'module.exports = ',
      JSON.stringify({
        version: npm.version
      }, null, 2),
      ';'].join(''));
  });
  grunt.registerTask('test', 'Run the jasmine and mocha tests', ['eslint', 'mochaTest', 'karma:single', 'ts']);
  grunt.registerTask('build', 'Run webpack and bundle the source', ['clean', 'webpack']);
  grunt.registerTask('version', 'Sync version info for a release', ['usebanner', 'package2bower', 'package2env']);
};