Deletes the expenses sample from this 2.1M3 branch. Can roll it back once it is
ready.

Patch by: rjrjr,amitmanjhi



git-svn-id: https://google-web-toolkit.googlecode.com/svn/branches/2.1M3@8613 8db76d5a-ed1c-0410-87a9-c151d255dfc7
128 files changed