remove @media code from tree.Directive

Author: NDMarcel

lib/less/tree/directive.js

@@ -1,34 +1,27 @@
 (function (tree) {
 
 tree.Directive = function (name, value, features) {
-    var selectors;
-
     this.name = name;
-    this.features = features && new(tree.Value)(features);
 
     if (Array.isArray(value)) {
-        selectors = name === '@media' ? [new(tree.Selector)([new(tree.Element)('&', null, 0)])] : [];
-        this.ruleset = new(tree.Ruleset)(selectors, value);
+        this.ruleset = new(tree.Ruleset)([], value);
         this.ruleset.allowImports = true;
     } else {
         this.value = value;
     }
 };
 tree.Directive.prototype = {
     toCSS: function (ctx, env) {
-        var features = this.features ? ' ' + this.features.toCSS(env) : '';
-
         if (this.ruleset) {
-            this.ruleset.root = ctx.length === 0 || (this.name !== '@media');
-            return this.name + features + (env.compress ? '{' : ' {\n  ') +
+            this.ruleset.root = true;
+            return this.name + (env.compress ? '{' : ' {\n  ') +
                    this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n  ') +
                                (env.compress ? '}': '\n}\n');
         } else {
             return this.name + ' ' + this.value.toCSS() + ';\n';
         }
     },
     eval: function (env) {
-        this.features = this.features && this.features.eval(env);
         env.frames.unshift(this);
         this.ruleset = this.ruleset && this.ruleset.eval(env);
         env.frames.shift();

lib/less/tree/import.js

@@ -71,7 +71,7 @@ tree.Import.prototype = {
                                 [i, 1].concat(ruleset.rules[i].eval(env)));
                 }
             }
-            return this.features ? new(tree.Directive)('@media', ruleset.rules, this.features.value) : ruleset.rules;
+            return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules;
         }
     }
 };