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:

```

Hello, world!

```

Reproduce the warnings on Windows 10 with Visual Studio 2017, then search the source for the exact strings "OPSZ_6_irex10_short4" and "Application changing protections of system memory" to find their emitters. Done means these recurring warnings no longer appear in affected applications while unrelated syslog warnings remain visible.

Written by the indexing model from the issue text.