GCC 4.6 detects variables that get assined to, but never used later.
Also removes some remmed-out lines that become invalid.

(closes issue ASTERISK-18336)
Signed-off-by: Tzafrir Cohen (License #5035) <tzafrir.cohen@xorcom.com&gt;,>

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@333509 65c4cc65-6c06-0410-ace0-fbb531ad65f3