haha, I agree. We have gone back and forth. Some like it, some don't. I am working on a solution for each user to be able to select their own choice.
For now its disabled.
To access by phone, just bookmark this link:
Mobile Chat
If you are still seeing it right now, its because some site level cache stuff has told your phone to remember the setting to keep that tab there. You can speed it up to go away by clearing your phone 'cache'. In android chrome, click the top right, 3 dots, go to HISTORY, clear CACHE. You don't need to wipe the history or your saved passwords or anything else. Come back and it'll be gone for good

Or wait, and it'll disappear when your local cache expires anyways.