Stop squaring GameController haptics intensity values on macOS 14+ as GameController was updated to no longer require it.
<rdar://111120352>
Pull request: https://github.com/WebKit/WebKit/pull/15158
Committed 265381@main (eb8b06f8fc5c): <https://commits.webkit.org/265381@main> Reviewed commits have been landed. Closing PR #15158 and removing active labels.