2014/1/1 Rustom Mody <rustompmody@gmail.com>
> sorry, I didn't read your question.. of course you want to _hide_ the time
> signature, so:
>
> \omit Staff.TimeSignature
>
> this command works from version 2.18, the latest stable
>

Well my debian testing only seems to have 2.16

in 2.16  you should write:
\override Staff.TimeSignature.stencil = ##f
 
And for some reason even thats marked as obsolete and to be removed!!
Anyway I guess its temporary

Weird, no package in testing:
http://packages.debian.org/search?keywords=lilypond

I suggest downloading the binary from lilypond.org. You can also donwload and install the documentation with the --doc option (due to a bug, you must cd into the directory and then launch the command):

sh lilypond-version.sh --doc