well its not really a deleted scene more so a small blink and you'll miss it scene.
i think it happens when obi1 is checking the CCTV footage to find out who pissed all over the jedi temple and the footage shows anakin taking out cin drallig and (i think) two other jedi.
as far as i know, thats the only scene in ROTS that has him in it.
why do they (GL I guess) insist on cutting out all the stuff thats guarenteed to be cool and leave in the crap.
did someone not pull him to one side and say
"george don't you think we should leave in that amazing fight where anakin goes up against the master swordsman Cin Drallig and rucks off like a madman instead of cutting to another shot of another poxy space ship"
well, people have pretty high expectations for these movies because the SW universe has grown so much for people over the years because of EU. but, they shouldn't complain over little things, i agree. if they're going to complain about missing scenes, they should complain about qui-gon's supposed visit with yoda.