fixed linting errors on packages/medusa/src/services/user.js #531 (#543)

* fixed linting errors on packages/medusa/src/services/user.js #531

* fix: resolving a few issues as raised in the PR, issue: #531

Co-authored-by: Sergiy Fomin <sergiy.fomin@sourcedgroup.com>

.eslintrc.js

@@ -9,7 +9,6 @@ module.exports = {
   plugins: [`eslint-plugin-prettier`],
   extends: [`eslint:recommended`, `google`, `eslint-config-prettier`],
   rules: {
-    "prettier/prettier": `error`,
     curly: [2, `all`],
     "new-cap": `off`,
     "require-jsdoc": `off`,