If you have an iPhone X, there are a few ways to remove a Google account from the device.

  1. Open the Settings app and select General > Reset > Reset everything. This will erase all your data and settings on the device.
  2. Type in “Google” into the Apple Menu bar and select Reset Apple ID. This will delete your Google account and all of your data on the device.
  3. Type in “Apple” into the Apple Menu bar and select Reset Apple ID > iCloud > Accounts & Data Management > Remove Account from iPhone X. This will remove your Google account from the iPhone X, if it exists at all.