Update scaladoc for Any.scala#equals()
Update scaladoc for Any.scala#equals()

The transitive requirement for `Any` shouldn't mention `AnyRef`
martijnhoekstra/scala,felixmulder/scala,shimib/scala,scala/scala,slothspot/scala,slothspot/scala,scala/scala,felixmulder/scala,jvican/scala,scala/scala,lrytz/scala,martijnhoekstra/scala,shimib/scala,felixmulder/scala,slothspot/scala,lrytz/scala,felixmulder/scala,slothspot/scala,scala/scala,martijnhoekstra/scala,martijnhoekstra/scala,jvican/scala,shimib/scala,felixmulder/scala,slothspot/scala,jvican/scala,jvican/scala,jvican/scala,martijnhoekstra/scala,felixmulder/scala,scala/scala,slothspot/scala,martijnhoekstra/scala,scala/scala,shimib/scala,jvican/scala,jvican/scala,felixmulder/scala,lrytz/scala,slothspot/scala,shimib/scala,lrytz/scala,lrytz/scala,shimib/scala,lrytz/scala