styles: improve task defaults

Author: gp-as

lib/gulp/tasks/styles.js

@@ -24,12 +24,7 @@ module.exports = function(settings, plugins, config) {
     .pipe(function() {
       let defaults = [
         '*.styl',
-        {
-          import: [
-            '../base/_variables.styl',
-            '../base/_mixins.styl',
-          ],
-        },
+        {},
       ];
       let taskSettings = buildSettings('stylus', defaults, settings);
       return runner('stylus', taskSettings, settings, plugins);