- Update to version s20200821
https://github.com/iputils/iputils/releases/tag/s20200821
- Remove BuildRequires libopenssl-devel (added md5 implementation thus not needed)
- Remove patches from this release
(arping-revert-partially-fix-sent-vs-received-package.patch,
arping-fix-f-quit-on-first-reply-regression.patch)