transports/meek_lite: Remove utls support
While this was a good idea back when I did it:
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People don't like the fact that it requires a fork of utls to fix compatibility issues, and would rather spend 3 years complaining about it instead of spending a weekend to fix the issues in upstream.
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Tor over meek is trivially identifiable regardless of utls or not.
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Malware asshats ruined domain fronting for everybody.