Remove littleGuys, no longer relevant

The 'littleGuys' (ie, isntall, verison, udpate) are included in the
cmdList.affordances section, so are no longer printed in the default
help banner anyway.  We can remove this variable.

lib/npm.js

@@ -92,17 +92,11 @@
   var commandCache = {}
   var aliasNames = Object.keys(aliases)
 
-  var littleGuys = [ 'isntall', 'verison' ]
-  var fullList = cmdList.concat(aliasNames).filter(function (c) {
+  var fullList = npm.fullList = cmdList.concat(aliasNames).filter(c => {
     return plumbing.indexOf(c) === -1
   })
   var abbrevs = abbrev(fullList)
 
-  // we have our reasons
-  fullList = npm.fullList = fullList.filter(function (c) {
-    return littleGuys.indexOf(c) === -1
-  })
-
   Object.keys(abbrevs).concat(plumbing).forEach(function addCommand (c) {
     Object.defineProperty(npm.commands, c, { get: function () {
       if (!loaded) {