[pacman-dev] Various code-cleanups

[James Rosten]

On the topic of code cleanup, I've only seen it once but I noticed a
piece of libtar code commented it out, and I see no reason behind its
purpose being there (its in libalpm's add.c).  For all I know, this
might be the only case of libtar comments, but if there are others of
these, I can only see their removal helping readability of alpm code.

~ Jamie / yankees26