I just switched my phone to an LG Sunset Android (my first smartphone). I synced the phone with my Google account... and realized that my phone contacts now includes every person I ever e-mailed on Gmail. I want to delete most of them, but I have not been able to figure out how to do that. I tried going into my Google Contacts on my computer and deleting unwanted contacts there... but even if I delete them on Google, they remain on my phone. Would anyone be able to help that?