Merge pull request #2124 from clone1612/remove-unused

[Refactoring] - Removed unused packages

package.json

@@ -71,7 +71,6 @@
     "lodash-move": "^1.1.1",
     "markdown-it": "^6.0.1",
     "markdown-it-admonition": "https://github.com/johannbre/markdown-it-admonition.git",
-    "markdown-it-checkbox": "^1.1.0",
     "markdown-it-emoji": "^1.1.1",
     "markdown-it-footnote": "^3.0.0",
     "markdown-it-imsize": "^2.0.1",
@@ -80,7 +79,6 @@
     "markdown-it-named-headers": "^0.0.4",
     "markdown-it-plantuml": "^0.3.0",
     "markdown-it-smartarrows": "^1.0.1",
-    "md5": "^2.0.0",
     "mdurl": "^1.0.1",
     "moment": "^2.10.3",
     "mousetrap": "^1.6.1",
@@ -97,8 +95,6 @@
     "sander": "^0.5.1",
     "sanitize-html": "^1.18.2",
     "striptags": "^2.2.1",
-    "superagent": "^1.2.0",
-    "superagent-promise": "^1.0.3",
     "unique-slug": "2.0.0",
     "uuid": "^3.2.1"
   },