Should there be a need to revert a Sailfish device back to a state where there is no Android Support and no Android apps, there are several options for this clean up.
1) CLEAN REMOVAL
This method should be used in the first place. It should remove everything...
- Uninstall all Android apps, one-by-one, using the app launcher grid. Tap-and-hold, then uninstall.
- To uninstall Android App Support, open Jolla Store, pull down My Apps and look for "Android App Support". Long-tap it and select "Uninstall".
- Restart the device.
2) FACTORY RESET
Factory reset will definitely wipe out all Android stuff and unfortunately much more. Hard work will be needed to set up the device for pure Sailfish OS use after the reset.
3) BRUTAL WAY
This method will definitely and quickly remove all Android stuff. Use it only if you are familiar with working on the command line. Be careful to run the commands correctly, or else you might cause damage to your device.
1. Uninstall Android App Support in My Apps of Jolla Store (see step 2 in "1) Clean removal").
2. Run the following commands in Terminal:
rm -rf /home/.android/*
3. Restart the device.