Remove a socket from top of kitchen cabinet

[Pat 5mph]

Hello all from Glasgow!
I'm getting a new kitchen in two weeks, will be professionally installed by a team.
I've started to remove the top cupboards because I want to paint the ceiling before the new ones go up.
One cupboard has a socket glued -? I can't see any screws - on top.
How can I remove the socket ( just from the cupboard) please, without electrocuting myself lol?
Here are pictures, Tia for any advice.

 

[mainline]

The sockets pattress will be screwed to the top of the cabinet.

You would need to turn the power off, then remove the 2 screws that hold the socket to the pattress lift the socket up to reveal the screws that hold the pattress to the cabinet.

 

[Pat 5mph]

The sockets pattress will be screwed to the top of the cabinet.

You would need to turn the power off, then remove the 2 screws that hold the socket to the pattress lift the socket up to reveal the screws that hold the pattress to the cabinet.

Thanks so much @mainline, the socket is so covered with paint that I could not see the screws.
I will turn the power off tomorrow and proceed as you say.
Btw, I had to Google socket pattress haha!

 

[Pat 5mph]

@mainline all done, thank you so much for your help!