Option to remove "You are using an unsupported feature flag:"

[NicholasFlamy]

Is your feature request related to a problem? Please describe.
I have command line args enabled on non-root on Android because I want to set up a sync server, but it has a popup every app launch and every new tab created.

Describe the solution you'd like, including relevant patches or source
Either disable the popup or add an option to disable it.

Additional Notes
What the popup looks like:

Full screenshot example: