Bug 1581015 - convert vcs-setup to run with python3 r=ahal

Differential Revision: https://phabricator.services.mozilla.com/D45817

--HG--
extra : moz-landing-system : lando

mach

@@ -89,7 +89,6 @@ py2commands="
     try
     uuid
     valgrind-test
-    vcs-setup
     vendor
     visualmetrics
     warnings-list