chore(package): remove unused dependency, grunt-sass

Author: petebacondarwin

package.json

@@ -40,7 +40,6 @@
     "diff": "^2.1.3",
     "fs-extra": "^0.30.0",
     "globby": "^4.0.0",
-    "grunt-sass": "^1.2.0",
     "gulp": "^3.5.6",
     "gulp-env": "0.4.0",
     "gulp-sass": "^2.3.2",