Hi,
I can help out here.
I found some coding that does still work. However, with the update to 3.10 in a couple days it would no longer work.
This coding here will work in 3.10 and prevent the ticket emails and remove the message from the order about getting the tickets in another email:
https://gist.github.com/jesseeproductions/7ec5827ffa34a3995dc9
If you really need it to work today change Tribe__Events__Tickets__Woo__Main to TribeWooTickets in both places of the snippet.
Also, if you think that is something you would like as a feature I encourage you to visit our User Voice Page and either upvote an existing request or make a new request there.
http://tribe.uservoice.com/
Cheers