[tz] Dropping iso3166.tab

[Clive D.W. Feather]

Paul_Koning at Dell.com said:
>> (3) Merge all Zones that are currently split only because of
>>    national boundaries.

> I'd rather not do #3.  The fact that they haven't had the same clocks for the entire time covered by the tzdata project isn't something that should be relegated to second class status.  Also, the fact that they are under separate administration means that the clocks could easily diverge again.

Counter-example: most of the time zones in Europe are under a single
administration (the EU). There's no significant risk from merging them
(even if the SNP wins its referedum or UKIP win an election).

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Clive D.W. Feather          | If you lie to the compiler,
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