I've read that the BSD-2 or "Simplified BSD" software license removes from the BSD-3 "some language that is no longer necessary". Looking at the difference between these two licenses, it appears that this refers to
Neither the name of [project] nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
In what sense is this language "no longer necessary". Is this protection implicit because of some other statute or agreement?