at the time of release it will be almost five years since we introduced
TS 2.0 and stopped writing 1.1 by default, so there shouldn't be much of
a need to write such files any more - and this commit doesn't even
remove 1.1 reading capability (because it comes for free so far).

Change-Id: Ie54fe31f83733ef944306c01301c0ec0e9bcb8bf
Reviewed-by: hjk <hjk121@nokiamail.com>