chore(utxo-core): updated JSDocs

Ticket: BTC-2235

TICKET: BTC-2235

Author: christopher-fong

modules/utxo-core/src/paygo/trimMessagePrefix.ts

@@ -2,9 +2,8 @@ import * as utxolib from '@bitgo/utxo-lib';
 
 /** We receive a proof in the form:
  * 0x18Bitcoin Signed Message:\n<varint_length><ENTROPY><ADDRESS><UUID>
- * and when verifying our message we want to exclude the 0x18Bitcoin Signed Message:\n<varint_length>
- * of the proof so that we are left with the entropy address and uuid as our message.
- * This is what we are going to be verifying.
+ * and trims the 0x18Bitcoin Signed Message:\n<varin_length> and returns
+ * our message <ENTROPY><ADDRESS><UUID> in a Buffer.
  *
  * @param proof
  * @returns

modules/utxo-core/test/paygo/psbt/payGoAddressProof.ts

@@ -135,7 +135,6 @@ describe('getPaygoAddressProofIndex', () => {
   });
 });
 
-// Small test to verify, leave in this test file
 describe('trimMessagePrefix', function () {
   it('should be the same proof constructed consistently', function () {
     const psbt = getTestPsbt();