Cleanup dependencies

package.json

@@ -13,6 +13,7 @@
   ],
   "scripts": {
     "make": "node Makefile.js",
+    "clean": "node Makefile.js clean",
     "test": "mocha",
     "coverage": "cross-env BABEL_ENV=cover nyc mocha",
     "build-bundle": "browserify --insert-globals --standalone fontkit ./index.js | uglifyjs --mangle -c > bundle.js"
@@ -31,7 +32,6 @@
   "author": "Devon Govett <devongovett@gmail.com>",
   "license": "MIT",
   "dependencies": {
-    "brfs": "^1.4.0",
     "brotli": "^1.2.0",
     "browserify-optional": "^1.0.0",
     "clone": "^1.0.1",
@@ -53,22 +53,14 @@
     "babel-plugin-istanbul": "^4.1.3",
     "codepoints": "^1.2.0",
     "concat-stream": "^1.4.6",
-    "cross-env": "^5.0.1",
     "esdoc": "^0.4.8",
     "esdoc-es7-plugin": "0.0.3",
     "iconv-lite": "^0.4.13",
     "mocha": "^2.0.1",
-    "npm-run-all": "^4.0.2",
     "nyc": "^10.3.2",
     "rollup": "^0.68.0",
     "rollup-plugin-babel": "^4.1.0",
     "rollup-plugin-json": "^3.1.0",
     "rollup-plugin-local-resolve": "^1.0.7"
-  },
-  "browserify": {
-    "transform": [
-      "brfs",
-      "browserify-optional"
-    ]
   }
 }