Consider purging vendor directory

[shoenig]

Now that mminimock is using Go modules, it seems redundant to have the vendor directory. Modules are publicly served via proxy.golang.org, and paranoid orgs will typically run an additional internal proxy. The vendor directory is also ignored by default.
https://github.com/golang/go/wiki/Modules#how-do-i-use-vendoring-with-modules-is-vendoring-going-away

[hexdigest]

Hi @shoenig
Done, thanks for the input!