1. Install USB drivers for your Motorola
2. Download and Install ADB tools
3. Unzip this file to a directory. (right click, extract all, select a directory).
4. Open a cmd prompt from this directory you just extracted to (ctrl+shft+right click, run command prompt here).
5. Enable Developer Options and USB Debugging
6. Find a good USB cable, plug it into your computer and then to your device. When the pop-up appears asking you to authorize the device, allow it.
7. Go Back to that cmd window you opened and type:
adb devices
8. This should return the ID of your device. If not, please go back and retrace your steps.
9. Next Type: adb shell
10. This should give you a new prompt, something to the effect of athene:/ - here type the following:
pm uninstall -k --user 0 com.amazon.phoenix
This should return 'Success' at which point Amazon Ads have been removed!
11. While You're at it, you might want uninstall a few more pieces of amazon software:
pm uninstall -k --user 0 com.amazon.widgets
pm uninstall -k --user 0 com.amazon.clouddrive.photos
pm uninstall -k --user 0 com.amazon.kindle
pm uninstall -k --user 0 com.amazon.dee.app
pm uninstall -k --user 0 com.amazon.drive
pm uninstall -k --user 0 com.imdb.mobile
pm uninstall -k --user 0 com.goodreads
pm uninstall -k --user 0 com.audible.application