Removes the comment from the English translation json.

lang/main.json

-/**
- * Object with translatable texts for Jitsi Meet in English.
- *
- * WARNING: The files for the other languages must not be created or changed manually.
- * They are generated by Pootle and the translation must be performed in the Pootle user interface on http://translate.jitsi.org.
- * If you're missing a language or have other questions, please send an e-mail to dev@jitsi.org
- */
 {
     "contactlist": "CONTACT LIST",
     "connectionsettings": "Connection Settings",