Whenever you are done using an Android device in which you have logged in your Google account in and you want to remove the account session then you have to follow these simple Guides/Steps.
1. Open the Device Android menu first.
Open your Android device menu and scroll it straight down to locate your device Settings which has the settings icon like the one I have on my device below.
2. Locate the Accounts icon in the settings.
When you're done opening the settings icon then you'll locate the Accounts icon at the 12th counting of all icons starting from the top.
Check image guide below;
From these listed lists you can remove your very own account you add on the Android device either it's yours or not yours and you are free to add or remove your Google account including others like Facebook, Twitter and all other installed apps on your device.
Feel free to add and remove later as permitted by the device owner.
Source: 365MediaHub