Remove Ruby dotenv conventions

These are considered in the Ruby `dotenv` package not in the node's one

Author: Spirit

Node.gitignore

@@ -74,10 +74,6 @@ web_modules/
 
 # dotenv environment variable files
 .env
-.env.development.local
-.env.test.local
-.env.production.local
-.env.local
 
 # parcel-bundler cache (https://parceljs.org/)
 .cache