[TxMt] iPhone.tmbundle: remove it or rename/describe it!

[Adam Strzelecki]

There's some very old iPhone.tmbundle bundle w/o any description, I presume it is Objective-C extensions for iOS development, moreover there's no Git repo for this bundle, so we should either:
(1) remove it, because it is really confusing
(2) rename it to "Objective-C iOS" and describe it as "Objective-C iOS SDK support" or string like that.

Regards,
-- 
Adam