Remove text about location permissions

[voronaam]

Remove Android only text that explains to user a perculiar situation with the location permissions, which is no longer true.

The application does NOT request the ACCESS_COARSE_LOCATION permission anymore.

This is in line with the API documentation: https://developers.google.com/android/exposure-notifications/exposure-notifications-api

Hence the block no longer applies.

Reviewer checklist

This is a suggested checklist of questions reviewers might ask during their review:

• Does this meet a user need?
• Is it accessible?
• Is it translated between both offical languages?
• Is the code maintainable?
• Have you tested it?
• Are there automated tests?
• Does this cause automated test coverage to drop?
• Does this break existing functionality?
• Should this be split into smaller PRs to decrease change risk?
• Does this change the privacy policy?
• Does this introduce any security concerns?
• Does this significantly alter performance?
• What is the risk level of using added dependencies?
• Should any documentation be updated as a result of this? (i.e. README setup, etc.)

[timarney]

Adding some reference links here:

Current Android

The Exposure Notification technology uses Bluetooth scanning to understand what devices are near one another. On all phones running Android 6.0 and above, to use Bluetooth scanning, the device location setting needs to be turned on ...

https://support.google.com/android/answer/9930236?hl=en

Android 11

On Android 11, which will soon be released, users will be able to use Exposure Notification apps without turning on the device location setting. We’re making this update for Exposure Notifications only, given that ENS has been designed in such a way that neither the system nor the apps using it can infer device location through Bluetooth scanning, and apps that are allowed to use ENS are subject to additional policies that disallow automatic collection of location. All other apps and services will still be prohibited from performing Bluetooth scanning unless the device location setting is on.

https://blog.google/inside-google/company-announcements/update-exposure-notifications

[timarney]

Closing this based on #1019 (comment)