Remove licensing and analytics code from WPDating plugin

This commit removes all code related to license validation and analytics reporting from the WPDating plugin.

The following changes were made:
– The `LicenceChecker` class was modified to always return a valid license, effectively disabling the license check.
– The main plugin file was updated to remove the license check initialization and related code.
– The code that fetches news from the developer’s website has been removed.
– The configuration file for the web messenger has been removed.