Remove Moq package

[lontivero]

The package Moq v4.20.0 started to sending the user's hashed email address to a central server.

Given many of our users are rather advanced we could expect many of them are cloning the repo and building from source and in that way they would be leaking their emails (it doesn't matter whether it is hashed or not)

We are not using the "evil" version yet but given the nature of our project we cannot have Moq.

Read: https://github.com/moq/moq/issues/1372

[lontivero]

It was not removed, There are still 10 or so cases we need to solve before removing it.

[stale]

This has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[lontivero]

This is not a priority anymore given the library changed the problematic behavior. However, having a mock library is not good and we should remove it eventually, otherwise we risk devs start using it again.