Remove isDirectory function (#65)

packages/slate-tools/src/tasks/includes/utilities.js

@@ -1,5 +1,4 @@
 const gutil = require('gulp-util');
-const fs = require('fs');
 const _ = require('lodash');
 const Promise = require('bluebird');
 
@@ -64,21 +63,6 @@ const utilities = {
     }).thenReturn(results).all();
   },
 
-  /**
-   * Checks whether the path is a directory
-   *
-   * @param path {String} - a string representing the path to a file
-   * @returns {boolean}
-   */
-  isDirectory: (path) => {
-    try {
-      // eslint-disable-next-line no-sync
-      return fs.statSync(path).isDirectory();
-    } catch (error) {
-      return false;
-    }
-  },
-
   /**
    * Function passed to cheerio.run - adds aria tags & other accessibility
    * based information to each svg element's markup...