Remove http-errors from devDependencies
Remove http-errors from devDependencies

http-errors is already a dependency in package.json
wincent/express-graphql,wincent/express-graphql,jamiehodge/express-graphql,graphql/express-graphql,jamiehodge/express-graphql,tim-steele/express-graphql,graphql/express-graphql,tim-steele/express-graphql,jamiehodge/express-graphql,tim-steele/express-graphql,graphql/express-graphql,wincent/express-graphql