Remove a few unused functions.

Remove a few unused functions.

I temporarily enabled -Wunused-function in build/common.gypi, sent a tryjob
to the linux clangbot, and fixed the fallout.

BUG=none
TEST=none


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=95097

[Nico, 2011-08-02 05:17:58]

rsleevi: net/ change
dmichael: rest (both fallout from http://codereview.chromium.org/7349016 )

[Ryan Sleevi, 2011-08-02 05:40:00]

net/ LGTM, but I'm not a net/ OWNER.

[Nico, 2011-08-02 05:42:43]

Ah, the x509 in the filename made me think of crypto for some reason. eroman,
can you stamp the net part?

[eroman, 2011-08-02 06:27:38]

LGTM

[dmichael (off chromium), 2011-08-02 14:48:40]

LGTM, thanks!

[commit-bot: I haz the power, 2011-08-02 17:00:25]

Change committed as 95097