Just bought a lovely sideboard from a charity shop. I knew the measurements of the alcove and knew it would fit, but stupidly forgot about the stupid bloody useless chunky plug socket we have there 

We never use it as it's behind the unit that's there already and it's too close to the floor to actually even plug anything in anyway. Can I just take it off myself? Would I need to do something with it do make it safe or cover it over? The new sideboard will cover it so I'm not bothered about aesthetics, I just want to make it safe. Can anyone suggest anything? Or do I have to get an electrician? Obviously I would turn the electrics off before fiddling with it!