Icon sign in not going away

[AC Question]

There is a triangle with explamantion point in my left corner that won't go away. When I scroll down it has a sign in request with my Gmail account with a gallery icon. When I click on it to take me there nothing ever happens. The icon just stays on in the left corner. Please help

 

[B. Diddy]

Welcome to Android Central! Which phone? I assume it's some Samsung device. It's probably asking for this so that the Samsung Gallery app can access your Google Photos in the cloud. Go to Settings>Accounts-Samsung, and uncheck Gallery or Photos, if you see it.