Revert "Search for MSBuild in "Current" if not found in "15.0" folder"
Revert "Search for MSBuild in "Current" if not found in "15.0" folder"

This reverts commit 11fc12bd9f10903b879a18abba1621329726fe2b.

mike-rowley/XamarinMediaManager,martijn00/XamarinMediaManager,mike-rowley/XamarinMediaManager,martijn00/XamarinMediaManager