Selenium Node doesn't pass IE specific options to IE Driver

[aliaksandrbasau]

Meta -

OS:
Any
Selenium Version:
3.8.1+
Browser:
Internet Explorer

The issue was introduced with the commit 9f5c1e8.
Maybe it should removed only se:CONFIG_UUID but not all options that starts with se: (e.g. se:ieOptions).

Steps to reproduce -

1. Start Selenium Hub and Node. The node is configured to run tests in IE.
2. Open any UI tool that allows to send REST requests (e.g. Postman).
3. Send a request to create a new session:
   
   You can see that the session was created with different options.

When you send the same request directly to IE Driver, the session is created with requested options:

Expected Behavior -

The options that are specific to Internet Explorer are propagated to IE Driver.

Actual Behavior -

The session is started with default options.