[REF] Extract record refund function

[eileenmcnaughton]

Overview

Function extraction

Before

Less readable

After

More readable

Technical Details

function extract & moved to Payment class

Comments

@monishdeb this should be pretty straight forward - just an extraction

[civibot]

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[monishdeb]

Agree, this is a simple extraction and doesn't affect the refund workflow, also the code is moved to correct place Payment. recordRefundPayment. So I am going to merge it