[ruby/io-wait] Revert https://github.com/ruby/io-wait/pull/9 "Make the gem a noop on Rubies older than 2.6"
This reverts commit https://github.com/ruby/io-wait/commit/75fcb74c327f.
The version that does nothing with pre-ruby 2.6 has already been released, so there is no longer need to consider older rubies in newer versions.
https://github.com/ruby/io-wait/commit/930d2f0d07
[ruby/io-wait] Revert https://github.com/ruby/io-wait/pull/9 "Make
the gem a noop on Rubies older than
2.6"
This reverts commit https://github.com/ruby/io-wait/commit/75fcb74c327f.
The version that does nothing with pre-ruby 2.6 has already been
released, so there is no longer need to consider older rubies in newer
versions.
https://github.com/ruby/io-wait/commit/930d2f0d07