A commenter here (and one on the original article) has noted that the part being elided appears to be the following:
> I should like to put it on record that I have never been able to dislike Hitler. Ever since he came to power—till then, like nearly everyone, I had been deceived into thinking that he did not matter—I have reflected that I would certainly kill him if I could get within reach of him, but that I could feel no personal animosity.
The full review is, apparently, here:
https://gutenberg.net.au/ebooks16/1600051h.html
That this is the only elision seems very strange. The passage is crucial to understanding how Hitler was able to do what he did. Orwell is expressing his admiration for Hitler's deep understanding of human nature while at the same time despising its application. It's a lesson too hard-won and too relevant today to be brushed aside.
Still, I can't help but think that Orwell, who gave us the Ministry of Truth and its capacity for historical engineering at scale, would be highly amused.