Summary:
## Changes in this pull request
`Examples/Examples-iOS/Pods/Pods.xcodeproj/project.pbxproj`
`Examples/Examples-tvOS/Pods/Pods.xcodeproj/project.pbxproj`
this change just Xcode 11.2 generated.
This pr aim to remove useless `IGSystemVersion` file.
### Checklist
- [x] All tests pass. Demo project builds and runs.
- [ ] I added tests, an experiment, or detailed why my change isn't tested.
- [x] I added an entry to the `CHANGELOG.md` for any breaking changes, enhancements, or bug fixes.
- [x] I have reviewed the [contributing guide](https://github.com/Instagram/IGListKit/blob/master/.github/CONTRIBUTING.md)
Pull Request resolved: https://github.com/Instagram/IGListKit/pull/1396
Reviewed By: lorixx
Differential Revision: D18638299
Pulled By: iperry90
fbshipit-source-id: 0b6583f1210e5d1570dd672eed8c59901d6785f6
