Add 'wp-post-new-reload' to the list of removable query args

[johnbillion]

In [33836], a wp-post-new-reload query var was introduced which prevents a post from being overwritten when the browser's Back button is used after saving a post.

This should be added to the list of removable query vars so it doesn't persist in the URL.

[johnbillion]

In 35460:

Add wp-post-new-reload to the list of removable query vars so it doesn't persist in the URL.

Fixes #34510