The Wayback Machine - https://web.archive.org/web/20190916061810/https://developer.jetpack.com/module/comment-likes/

Browsing hooks for feature: Comment Likes

comment_like_button

hook (filter): Filters the Comment Likes button content.

Source: modules/comment-likes.php:202

jetpack_comment_likes_enabled

hook (filter): Filters whether Comment Likes are enabled.<p>true if enabled, false if not.</p>

Source: modules/likes/jetpack-likes-settings.php:584