1. Go to Apps > Menu > App Management and activate USB debugging
2. Make sure you have ADB installed on your computer
3. Connect the e-reader to your computer

Use this command to list all google related Apps to a text file.

adb shell pm list packages -f > bloated.txt

Then delete them with:

adb shell pm uninstall -k --user 0 com.google.app

These are examples of invisible google apk's most of the phones have integrated:

com.google.android.syncadapters.calendar
com.google.android.gms.location.history
com.google.android.apps.restore
com.google.android.partnersetup
com.google.android.gms.setup
com.google.android.email
com.android.email
com.android.egg
com.android.bips
com.android.protips
com.android.vending
com.android.documentsui

If you accidentally deleted an necessary app restore it with:

adb shell cmd package install-existing com.google.app