ipc: delete wchar_t IPC trait
ipc: delete wchar_t IPC trait

We don't send wchars over IPC, so I'm not sure where this came from.

TEST=still compiles

Review URL: http://codereview.chromium.org/3106034

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@57433 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser