Don't require Microsoft Build Tools on 3.10+ Pythons

[ptsavol]

I think the culprit here is the psutil package, which is a dependency of our dependency (not sure which one). It seems that we have locked the psutil version to < 5.9.2 in toolbox. 5.9.1 requires the Microsoft build tools but newer versions of psutil don't. I'll just remove the psutil requirement lock and see what happens.