move cleancss into lessc bin only

lib/less/contexts.js

@@ -69,11 +69,9 @@ var evalCopyProperties = [
     'silent',         // whether to swallow errors and warnings
     'verbose',        // whether to log more activity
     'compress',       // whether to compress
-    'yuicompress',    // whether to compress with the outside tool yui compressor
     'ieCompat',       // whether to enforce IE compatibility (IE8 data-uri)
     'strictMath',     // whether math has to be within parenthesis
     'strictUnits',    // whether units need to evaluate correctly
-    'cleancss',       // whether to compress with clean-css
     'sourceMap',      // whether to output a source map
     'importMultiple', // whether we are currently importing multiple copies
     'urlArgs',        // whether to add args into url tokens

lib/less/environment/browser.js

@@ -44,8 +44,6 @@ return {
     alwaysMakePathsAbsolute: function alwaysMakePathsAbsolute() {
         return true;
     },
-    getCleanCSS: function () {
-    },
     supportsDataURI: function() {
         return false;
     },

lib/less/environment/node.js

@@ -23,9 +23,6 @@ module.exports = {
     readFileSync: function (filename) {
         return require("fs").readFileSync(filename);
     },
-    getCleanCSS: function() {
-        return require('clean-css');
-    },
     getPath: function (env, filename) {
         var j = filename.lastIndexOf('/');
         if (j < 0) {

lib/less/parser/parser.js

@@ -176,21 +176,7 @@ var Parser = function Parser(env) {
                         throw new LessError(parser, e, env);
                     }
 
-                    var CleanCSS = environment.getCleanCSS();
-                    if (options.cleancss && CleanCSS) {
-                        var cleancssOptions = options.cleancssOptions || {};
-
-                        if (cleancssOptions.keepSpecialComments === undefined) {
-                            cleancssOptions.keepSpecialComments = "*";
-                        }
-                        cleancssOptions.processImport = false;
-                        cleancssOptions.noRebase = true;
-                        if (cleancssOptions.noAdvanced === undefined) {
-                            cleancssOptions.noAdvanced = true;
-                        }
-
-                        return new CleanCSS(cleancssOptions).minify(css);
-                    } else if (options.compress) {
+                    if (options.compress) {
                         return css.replace(/(^(\s)+)|((\s)+$)/g, "");
                     } else {
                         return css;