Deprecate disabling use_only_cookies (#13578)

Fix url_rewriter.hosts not used for output_add_rewrite_var()

If fixes issue where session.trans_sid_hosts used instead of
url_rewriter.hosts for output_add_rewrite_var().

Closes

Fix url_rewriter.hosts not used for output_add_rewrite_var()

If fixes issue where session.trans_sid_hosts used instead of
url_rewriter.hosts for output_add_rewrite_var().

Closes GH-13294

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