Code review fixes

packages/constraint-solver/constraint-solver.js

@@ -62,7 +62,6 @@ CS.PackagesResolver._resolveWithInput = function (input, _nudge) {
     var result = solver.getSolution();
     // if we're here, no conflicts were found (or an error would have
     // been thrown)
-    //XXX console.log(solver.getCostReport());
     return result;
   });
 };

packages/constraint-solver/version-pricer.js

@@ -214,9 +214,6 @@ CS.VersionPricer.prototype.categorizeVersions = function (versions, pivot) {
            higherMajor: versions.slice(higherMajorIndex) };
 };
 
-var zeroFunc = function () { return 0; };
-var oneFunc = function () { return 1; };
-
 // Use a combination of calls to scanVersions with different modes in order
 // to generate costs for versions relative to a "previous solution" version
 // (called the "pivot" here).