According to this LA Times blogger:

The parts that stressed his opposition to the 2007 troop surge and his statement that more troops would make no difference in a civil war have somehow disappeared. John McCain and Obama have been going at it heavily in recent days over the benefits of the surge.
[…]
When President Bush ordered the surge in January 2007, Obama said: “I am not persuaded that 20,000 additional troops in Iraq is going to solve the sectarian violence there. In fact, I think it will do the reverse,” a position he maintained throughout 2007. This year he acknowledged progress, but maintained his position that political progress was lacking.

Yeah, if I were that wrong on the surge and I was running for the position of commander in chief, I would delete the reference as well. Since he’s already demonstrated that he doesn’t know what he’s talking about, maybe he should leave it to the professionals to determine when we leave Iraq.
(via)