Remove unused eslint-plugin-babel

Reviewed By: yungsters

Differential Revision: D6677669

fbshipit-source-id: 59a2eff184c0375b62d666d6953ce04541634373

Author: elicwhite

package.json

@@ -204,7 +204,6 @@
     "eslint": "^3.19.0",
     "eslint-config-fb-strict": "^20.0.3",
     "eslint-config-fbjs": "^1.1.1",
-    "eslint-plugin-babel": "^4.1.1",
     "eslint-plugin-flowtype": "^2.33.0",
     "eslint-plugin-jest": "^21.5.0",
     "eslint-plugin-prettier": "2.1.1",