Remove warnings about OPSZ_6_irex10_short4 and changing system prot since they show up in every app on Win10 VS2017

This is a long-standing action item, to remove these syslog warnings since they show up in just about every app on recent Windows IIRC:

<curiosity: rex.w on OPSZ_6_irex10_short4!>
Hello, world!
<Application changing protections of system memory at least once (0x00007ffd48b5a000-0x00007ffd48b5e000)>