SI-7335 Remove special case for import of Predef._ in Predef.scala
SI-7335 Remove special case for import of Predef._ in Predef.scala

Perhaps this once was problematic, but in our modern age we can
bootstrap perfectly well with this import.

slothspot/scala,scala/scala,felixmulder/scala,shimib/scala,felixmulder/scala,slothspot/scala,martijnhoekstra/scala,felixmulder/scala,shimib/scala,lrytz/scala,slothspot/scala,jvican/scala,felixmulder/scala,martijnhoekstra/scala,jvican/scala,shimib/scala,lrytz/scala,lrytz/scala,lrytz/scala,felixmulder/scala,slothspot/scala,scala/scala,jvican/scala,slothspot/scala,slothspot/scala,martijnhoekstra/scala,felixmulder/scala,slothspot/scala,scala/scala,felixmulder/scala,shimib/scala,lrytz/scala,lrytz/scala,scala/scala,jvican/scala,martijnhoekstra/scala,jvican/scala,martijnhoekstra/scala,shimib/scala,jvican/scala,martijnhoekstra/scala,jvican/scala,shimib/scala,scala/scala,scala/scala