'word-count' always enqueued, even when not needed

[johnjamesjacoby]

When tinymce is false (and subsequently when teeny is true) the word-count script is still enqueued, even though there is no relevant UI for it to report back to.

This results in WordPress enqueueing /wp-admin/js/word-count$suffix.js when it does not appear to be necessary, and also inserts an additional script tag for the accompanying wordCountL10n localized value.

[johnjamesjacoby]

Move the word-count enqueue into the self::$has_tinymce check

[johnjamesjacoby]

For a quick way to confirm this:

• Login to bbpress.org
• Visit: ​https://bbpress.org/forums/topic/bbpress-2-5-5/
• View source of page
• Search for wordCount

Notice the script tag and included javascript file, even though no visual editor or word count UI exists

[DrewAPicture]

First of all, seems like a valid expectation that we wouldn't want to enqueue 'word-count' if there's no editor. So with that in mind, what about using dependencies to load it instead of individually enqueuing them?

[iseulde]

In [32856] this has become a dependency of post.js, so it should be removed.

[iseulde]

In 33295:

Editor: word count: remove redundant script enqueuing

It is now a dependency of post.

Part props johnjamesjacoby.
Fixes #31766. See #30966.