[ttml2] Pull Request: Remove usesForced named metadata item

palemieux has just submitted a new pull request for https://github.com/w3c/ttml2:

== Remove usesForced named metadata item ==
Closes #609 

Moots PR #611

See https://github.com/w3c/ttml2/pull/621

Received on Thursday, 1 February 2018 21:21:28 UTC