Anybody know what this is?

https://imgur.com/ppmE0NN

I am doing some window interior and trims for a friend and ran into what seems to be some kind of single bar assembly that runs across the window. The peice in the picture was mounted on the inside and there was an identical one on the other side (not wired), and a bar sitting there. It was there when my friend moved in so they don't know. Anyone have an idea actually what this is or why it would be hard wired?

Would love to know what it might be before I just take it out. Thanks in advance!