Fixing double-call of _onYoutubeStateChange when state changes
and also removing a boolean which allowed the sendMetaEvent to be called only
once without reinitializing the entire youtube provider.

[Fixes #79629726]
if youtube video has only 1 quality and 'auto', do not show an HD toggle [Fixes #79629726]
Merge pull request #171 from jwplayer/bugfix/youtube-qualities

Fixing double-call of _onYoutubeStateChange when state changes [Delivers #79629726]