[automerger skipped] Remove storage sandboxes related code.
am: ebce4cc16b -s ours
am skip reason: change_id Ib3272a47a901ed106474039e72f123b11f5443ff with SHA1 5fceb48da1 is in history

Change-Id: I0d248b5b041118b318c36858882342d626fcb7b0