Disable home button long press topic

I've always configured my home button long press as screenshot shortcut but after lollipop update viper m8 whenever I'm taking screw shot ( long pressing home button ) this white spot is appearing . And when I select the white spot it gives me options as complete action using dolphin browser and hibernate and lock screen .

As I can see the spot in the given screenshot
Sent from my HTC One_M8 using XDA Free mobile app

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