Remove clang-format rm_binaries.py DEPS entry.

Breaks runhooks.

BUG=
TBR=kjellander@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/18949004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6788 4adac7df-926f-26a2-2b94-8c16560cd09d