Here you can see a simple step to remove profile picture from Google account like Gmail, hangouts etc. You can delete all pictures from your albums through this procedure
You can delete your Google account profile photo or any other from the album easily though Google +. Check below screen shots and steps to remove images from Google account.
How to Remove Pictures from Google Account
- Open Google+ account
- Click on profile or profile picture
- You can see delete option at the top that you can see from the below screen shot