I am mobile now. i cannot try this idea sorry but you can try to follow. And pls tell me results.
I had the exact same thing a couple of days ago when testing some avatars in our extension.
The message you’ve provided is being produced by Community Builder as it’s importing jQuery Migrate (uncompressed).
You can either, download the minified version and replace it, or open the current file and replace:
jQuery.migrateMute = false
with
jQuery.migrateMute = true
I think thats ok