I have done mine ready for my cossie loom and it isnt just a case of cutting that part off lol

you will find that the wiring from the mfi plugs go to the fuse box then double back town the other leg that you havent ringed, plus isnt somewhere in where you have ringed the break fluid level plug?

Also dont forget there is the purple relay under the dash for the fuel pump that connects in aswell, you be better untaping it all but remember what is what and which side they went to and follow it all out bit at a time.