Remove WebRTC leak prevention #1723

Prerequisites

• I verified that this is not a filter issue (MUST be reported at filter issue tracker)
• This is not a support issue or a question
• I performed a cursory search of the issue tracker to avoid opening a duplicate issue
• The issue is not present after wholly disabling uBlock Origin ("uBO") in the browser
• I checked the documentation to understand that the issue I report is not a normal behavior

I tried to reproduce the issue when...

• uBO is the only extension
• uBO with default lists/settings
• using a new, unmodified browser profile

Description

A large amount of users still enable "Prevent WebRTC from leaking local IP addresses" which breaks WebRTC application even though browsers no longer leak local IP address information by masking local candidates with mDNS.

This option if not removed should at a minimum be hidden behind advance settings (defaulted to off)

A specific URL where the issue occurs

https://browserleaks.com/webrtc

Steps to Reproduce

1. Enable "Prevent WebRTC from leaking local IP addresses"
2. Try and establish a PeerConnection

Expected behavior

WebRTC applications should continue to work as they will never produce local IP addresses

Actual behavior

WebRTC applications break

uBlock Origin version

1.37.2

Browser name and version

Edge Version 94.0.992.19

Operating System and version

Windows 10