Remove webrtc/system_wrappers/interface/scoped_ptr.h

No one uses it anymore; they've all switched to the cooler
webrtc/base/scoped_ptr.h instead.

R=tommi@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/42129004

Cr-Commit-Position: refs/heads/master@{#8569}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8569 4adac7df-926f-26a2-2b94-8c16560cd09d
4 files changed