vim: remove Counter from python code, no longer rely on python2.7+
vim: remove Counter from python code, no longer rely on python2.7+

the-lambda-church/merlin,the-lambda-church/merlin,rgrinberg/merlin,haselwarter/merlin,neojski/merlin,haselwarter/merlin,rgrinberg/merlin,haselwarter/merlin,rgrinberg/merlin,fxfactorial/merlin,dra27/merlin,chambart/merlin,neojski/merlin,neojski/merlin,chambart/merlin,dra27/merlin,dra27/merlin,dra27/merlin,rgrinberg/merlin,chriskonstad/merlin,the-lambda-church/merlin,chriskonstad/merlin,ocaml/merlin,ocaml/merlin,fxfactorial/merlin,fxfactorial/merlin,haselwarter/merlin,ocaml/merlin,ocaml/merlin,chambart/merlin,fxfactorial/merlin,neojski/merlin,chambart/merlin