package.json cleanup devDependencies

remove packages no longer needed:
- coffee-script (old package name, was deprecated
  in favor of coffeescript)
- uncrustify

package.json

@@ -32,7 +32,6 @@
   "author": "Apache Software Foundation",
   "license": "Apache-2.0",
   "devDependencies": {
-    "coffee-script": "^1.7.1",
     "eslint": "^4.0.0",
     "eslint-config-semistandard": "^11.0.0",
     "eslint-config-standard": "^10.2.1",
@@ -44,8 +43,7 @@
     "jasmine": "~2.6.0",
     "nodeunit": "^0.8.7",
     "rewire": "^2.5.1",
-    "tmp": "^0.0.26",
-    "uncrustify": "^0.6.1"
+    "tmp": "^0.0.26"
   },
   "engines": {
     "node": ">=4"