remove jquery (affected by merging official)

package.json

@@ -88,7 +88,6 @@
     "i18next-node-fs-backend": "~0.1.3",
     "i18next-sprintf-postprocessor": "~0.2.2",
     "inline-attachment": "~2.0.3",
-    "jquery": "~2.1.4",
     "jquery.cookie": "~1.4.1",
     "marked": "~0.3.6",
     "md5": "^2.2.1",