Remove eslint-plugin-babel since ESLint supports it natively now

Author: jwilsson

.eslintrc.json

@@ -1,9 +1,6 @@
 {
   "extends": "eslint:recommended",
   "parser": "babel-eslint",
-  "plugins": [
-    "babel"
-  ],
   "env": {
     "atomtest": true,
     "es6": true,
@@ -15,9 +12,9 @@
     "waitsForPromise": true
   },
   "rules": {
-    "babel/arrow-parens": 2,
     "array-bracket-spacing": 2,
     "arrow-body-style": [2, "always"],
+    "arrow-parens": 2,
     "arrow-spacing": 2,
     "brace-style": 2,
     "camelcase": 2,

package.json

@@ -15,8 +15,7 @@
   },
   "devDependencies": {
     "babel-eslint": "^7.0.0",
-    "eslint": "^3.0.1",
-    "eslint-plugin-babel": "^3.2.0"
+    "eslint": "^3.0.1"
   },
   "package-deps": [
     "linter"