remove unused deps

package.json

@@ -40,7 +40,6 @@
   "homepage": "https://github.com/rollup/rollup",
   "devDependencies": {
     "acorn": "^2.3.0",
-    "babel": "^5.8.21",
     "babel-core": "^5.5.8",
     "chalk": "^1.0.0",
     "codecov.io": "^0.1.6",
@@ -49,9 +48,7 @@
     "estree-walker": "^0.1.3",
     "gobble": "^0.10.1",
     "gobble-babel": "^5.5.8",
-    "gobble-browserify": "^0.6.1",
     "gobble-cli": "^0.4.2",
-    "gobble-esperanto-bundle": "^0.2.0",
     "gobble-rollup": "^0.10.0",
     "gobble-rollup-babel": "^0.4.0",
     "istanbul": "^0.3.20",