Fix: Update FlowType Definitions to include clearFields

[jwineman]

Steps to reproduce:

1. Install redux-form 7.2.3

2. Install flow-bin 0.53

3. Try to import clearFields with Flow enabled:

// @flow
import {clearFields} from 'redux-form';

Expected: Flow does not error.
Actual: Flow displays the following error:

 2: import {clearFields} from 'redux-form';
             ^^^^^^^^^^^ Named import from module `redux-form`. This module has no named export called `clearFields`.

This is because index.js.flow is missing declarations for clearFields.

This is my first time contributing to this repository - please let me know if there is anything else I need to do in order to get this PR accepted.

[codecov-io]

Codecov Report

Merging #3820 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #3820   +/-   ##
======================================
  Coverage     100%    100%           
======================================
  Files          70      70           
  Lines        1601    1601           
======================================
  Hits         1601    1601

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[erikras]

Published in v7.3.0.

[jwineman]

Thanks!

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.