After removing the development app from the connected apps in the Fit app, Fitness data could be obtained

Question

[procedure] 

1. OAuth account & permission approved. (in developing app)
2. in Google Fit App, remove developing app from "connected apps".
3. access sleep, weight and etc..., read health data. and succeeded (in developing app)

In step3, permissions of each fitness were permitted, I hope that permissions were not permitted and cannot succeeded read date in step3.

What happened. and Can I listen to removed my app from "connected apps".

[environment] phone: Pixel 4a OS: Android11