Unset transaction source for Braintree

snippet.php

<?php 

add_filter( 'wc_braintree_transaction_data', 'sv_unset_transaction_source', 10, 2 );

/**
 * Unset the transaction source to prevent authorizations from expiring too soon.
 *
 * @param array $request_data The transaction/sale data
 * @param \WC_Braintree_API_Transaction_Request $request the request object
 * @return array
 */
function sv_unset_transaction_source( $request_data, $request ) {
	
	if ( ! empty( $request_data['transactionSource'] ) )	{
		 unset( $request_data['transactionSource'] );
	}
	
	return $request_data;
}