After logging in customer is now not redirecting to Customer Dashboard by default

[p-bystritsky]

Description

After logging in customer is now not redirecting to Customer Dashboard by default (based on #10834 (comment)).

Manual testing scenarios

1. Open Admin -> "Stores" -> "Customers" -> "Customer Configuration" -> "Login Options" -> "Redirect Customer to Account Dashboard after Logging in" and make sure "Use system value" is checked.
2. On the Storefront create a Customer.
3. Log out if you are logged in.
4. Open CMS index page.
5. Log in with Customer's credentials.
6. You should be redirected to CMS index page, not to Customer Dashboard.

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[p-bystritsky]

Incorrect implementation and issue is already assigned to another user.