Merge pull request ethjs#3 from legobeat/devdeps-remove-check-es3-syntax-cli

devDeps: remove legacy check-es3-syntax-cli

Author: legobeat

package-lock.json

@@ -115,7 +115,6 @@
     "bignumber.js": "3.0.1",
     "bn.js": "4.11.6",
     "chai": "3.5.0",
-    "check-es3-syntax-cli": "0.1.3",
     "cross-env": "1.0.7",
     "eslint": "2.10.1",
     "eslint-config-airbnb": "9.0.1",