I have the Samsung Galaxy s5 and when I open the Internet and open gmail, at the sign in screen when I put the cursor in the email username box as if to start typing in my email it fills it in for me from remembering it from the first time I logged in. How do I get it to forget? I deleted it from my dictionary but it's as if the site is doing this autofill. There is no option I could find in settings for Internet. .HELP PLEASE!