Advice please

I am in the background of a nascent dispute. Client has sent me a letter to check over before it is sent to the other side.

Legally it is fine. But it contains an enormous stinking, steaming superfluous reflexive.

How do I explain my amendment without revealing that I am a supercilious old tw@t?

I have left much as your letter as drafted as I don’t think that it would assist your case at this stage to alert the other side that you have had professional input.