Windows 10 System Settings: remove progress bar announcement from input/output volume meter. Re #10411. (#10412)
In Windows 10 Version 1803 (April 2018 Update, specifically withj build 17035) and later, Windows 10's Settings app added System/Sound page, moving Sound property sheet from Control Panel to Settings. However, this page includes an anoying progress bar which is really a volume meter, causing NVDA to announce progress bar information. Thus remove progress bar behavior so NVDA can remain silent.