Fix trailling comma (#3489)
Fix trailling comma (#3489)

Remove extra trailing at the last line of rules

* Trailing comma or any other violations is causing .json files stop working
facebook/jest,ide/jest,skovhus/jest,cpojer/jest,skovhus/jest,facebook/jest,cpojer/jest,mpontus/jest,bookman25/jest,bookman25/jest,mpontus/jest,skovhus/jest,ide/jest,mpontus/jest,cpojer/jest,ide/jest,bookman25/jest,facebook/jest