Odd button that locks up galaxy note 4

[jonnyman5656]

if I press it the whole screen darkens, i cant use anything and I cant turn it off unless I take the battery out. How do I remove this button? It looks like a remote kinda.

[Ad Bot]

[jonnyman5656]

Dafuq?
I just opened zombie gunship and it's gone now.
I don't even know.

[Steve5451²]

Usually when you drag those things a little x will appear to remove it with.

[BluetoothBoy]

Um... That's quite the home screen you have there... O_o