Remove NO_INTERNET code

[liammulh]

I added some conditional code that makes it so that I could develop Rosetta without an internet connection. (I was traveling.)

For example:

rosetta/src/server/translationApi/getTranslationFormData.js

Lines 79 to 85 in a035b5c

	// If working on the translation utility without an internet connection,
	// mock the translation form data with your local copy. (This assumes you have
	// a local copy of translation form data.)
	if ( publicConfig.ENVIRONMENT === 'development' && privateConfig.NO_INTERNET ) {
	logger.info( 'using local copy of translation form data' );
	return JSON.parse( fs.readFileSync( './translationFormData.json' ) );
	}

I don't think it's necessary to keep this code around. I think we could do a project-wide search on NO_INTERNET and remove the conditional blocks that use that variable, and then remove the variable from the config.

[liammulh]

Deployed in 6021626 (2.0.7).