gnucash maint: [net-charts] simplify code

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/4e950e6c (commit)
	from  https://github.com/Gnucash/gnucash/commit/7d8c8cbb (commit)



commit 4e950e6cf829a76f97459147ddab4b199426b364
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Fri Feb 11 15:42:33 2022 +0800

    [net-charts] simplify code
    
    Instead of collector->monetary which takes a collector (bag of
    monetaries) and returns a monetary {report-currency, amount}, return
    amount. Simplifies code.



Summary of changes:
 gnucash/report/reports/standard/net-charts.scm | 40 +++++++++++++++-----------
 1 file changed, 24 insertions(+), 16 deletions(-)