I don't like trackers as much as the next person. But nowhere in the original thread does Mobi say adjust.com will be removed in the "next update." All that was said that that they "will find a solution..."
Did You see the attacment? If not, then copy/paste from GooglePlay:
Olaf Hesse
June 5, 2019
New update contains new data Tracker (Adjust), even in pro version. Disabling of user statistics in settings does not help. No information in changelog .
MobiSystemsJune 7, 2019
Hi Olaf, Yes, it's actually something that we'll fix in the next app update. Please excuse us for the inconvenience it was unintentional on our. This new "tracker" does not track, store or share your info. It simply checks for your app license - Pro or Free. Again it will be fixed in a following update.