Remove ModuleCache Parameter and references

[JustinGrote]

This is a legacy setting that can be removed, as we don't actually save these temporarily.

Alternatively, this could be a cache location that, only if specified, could save the nuget files and cache them locally for fast reinstallation. I don't think that would make any sense because once the module is extracted, there's usually not a need except in some sort of multiuser installation scenario, and in that case a local repo just makes more sense then some kind of shared on-disk cache except in maybe heavy VDI scenarios.

ModuleFast/ModuleFast.psm1

Lines 34 to 35 in 9786057

	$ModuleCache = $(New-Item -ItemType Directory -Force -Path Temp:\ModuleFastCache),
	#The repository to scan for modules. TODO: Multi-repo support

[JustinGrote]

Closed #10