Remove all Google apps from an android phone/tablet (Nexus 5 / Nexus 9 | Marshmallow 6.0.1).

adb.sh

# With your phone in debug mode, etc.
adb start-server
adb remount
adb shell < remove.sh

remove.sh

rm -rf /system/app/Books
rm -rf /system/app/CalendarGooglePrebuilt
rm -rf /system/app/Chrome
rm -rf /system/app/CloudPrint2
rm -rf /system/app/Drive
rm -rf /system/app/EditorsDocsStub
rm -rf /system/app/EditorsSheetsStub
rm -rf /system/app/EditorsSlidesStub
rm -rf /system/app/EditorsDocs
rm -rf /system/app/EditorsSheets
rm -rf /system/app/EditorsSlides
rm -rf /system/app/FitnessPrebuilt
rm -rf /system/app/GoogleCamera
rm -rf /system/app/GoogleEars
rm -rf /system/app/GoogleHindiIME
rm -rf /system/app/GooglePinyinIME
rm -rf /system/app/GoogleTTS
rm -rf /system/app/Hangouts
rm -rf /system/app/KoreanIME
rm -rf /system/app/Maps
rm -rf /system/app/Music2
rm -rf /system/app/NewsstandStub
rm -rf /system/app/Newsstand
rm -rf /system/app/Photos
rm -rf /system/app/PlayGames
rm -rf /system/app/PlusOne
rm -rf /system/app/PrebuiltBugleStub
rm -rf /system/app/PrebuiltDeskClockGoogle
rm -rf /system/app/PrebuiltGmail
rm -rf /system/app/PrebuiltKeepStub
rm -rf /system/app/PrebuiltKeep
rm -rf /system/app/PrebuiltNewsWeather
rm -rf /system/app/talkback
rm -rf /system/app/Videos
rm -rf /system/app/WebViewGoogle
rm -rf /system/app/YouTube