Remove boilerplate code from HydrogenCodeStubs

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14003 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fixed whitespace

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14004 ce2b1a6d-e550-0410-aec6-3dcde31c8c00