Summary:
Related to #21581
This PR was already opened here https://github.com/facebook/react-native/pull/21600 but seems to be inactive.
Remove createReactClass from ProgressBarAndroidExample.
- `yarn run flow` && `yarn run flow-check-android` succeed.
- RNTester app ProgressBarAndroidExample on Android.
[GENERAL] [ENHANCEMENT] [ProgressBarAndroidExample.android.js] - rm createReactClass
Pull Request resolved: https://github.com/facebook/react-native/pull/21874
Reviewed By: TheSavior
Differential Revision: D12827689
Pulled By: RSNara
fbshipit-source-id: 46c70ea67dddf5d928fe936a28ef4a0a929d127f