Remove unused imports and other minor cleanups

 - Language imports are preceding other imports
 - Deleted empty file: InlineErasure
 - Removed some unused private[parallel] methods in
   scala/collection/parallel/package.scala

This removes hundreds of warnings when compiling with
"-Xlint -Ywarn-dead-code -Ywarn-unused -Ywarn-unused-import".

1 files changed, 2 insertions, 2 deletions

diff --git a/src/compiler/scala/tools/nsc/typechecker/Typers.scala b/src/compiler/scala/tools/nsc/typechecker/Typers.scala
index 3889d48213..84af9233e1 100644
--- a/src/compiler/scala/tools/nsc/typechecker/Typers.scala
+++ b/src/compiler/scala/tools/nsc/typechecker/Typers.scala
@@ -14,7 +14,7 @@ package tools.nsc
 package typechecker
 
 import scala.collection.{mutable, immutable}
-import scala.reflect.internal.util.{ BatchSourceFile, Statistics, shortClassOfInstance, ListOfNil }
+import scala.reflect.internal.util.{ Statistics, ListOfNil }
 import mutable.ListBuffer
 import symtab.Flags._
 import Mode._
@@ -110,7 +110,7 @@ trait Typers extends Adaptations with Tags with TypersTracking with PatternTyper
 
   abstract class Typer(context0: Context) extends TyperDiagnostics with Adaptation with Tag with PatternTyper with TyperContextErrors {
     import context0.unit
-    import typeDebug.{ ptTree, ptBlock, ptLine, inGreen, inRed }
+    import typeDebug.ptTree
     import TyperErrorGen._
     val runDefinitions = currentRun.runDefinitions
     import runDefinitions._