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With macOS Sierra pushing Siri as a very cool new feature, the behaviour of my (wired) Apple earbuds has changed. When I give it a single tap, the music will pause or play, which is normal. However, I'm also used to double-tapping to advance to the next song, like on my iPhone. That feature is gone. Also, on the first tap, the "Enable Siri?" dialog comes up: I decided to disable Siri as I don't use it much and the additional battery drain (that I may be making up) doesn't seem worthwhile to me.
How can I disable this dialog and revert my iTunes behaviour back to what I'm used to?