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, 1 insertions, 3 deletions

diff --git a/src/library/scala/collection/immutable/NumericRange.scala b/src/library/scala/collection/immutable/NumericRange.scala
index 11603a118b..c8d7519254 100644
--- a/src/library/scala/collection/immutable/NumericRange.scala
+++ b/src/library/scala/collection/immutable/NumericRange.scala
@@ -10,8 +10,6 @@ package scala
 package collection
 package immutable
 
-import mutable.{ Builder, ListBuffer }
-
 // TODO: Now the specialization exists there is no clear reason to have
 // separate classes for Range/NumericRange.  Investigate and consolidate.
 
@@ -193,7 +191,7 @@ extends AbstractSeq[T] with IndexedSeq[T] with Serializable {
         // Either numRangeElements or (head + last) must be even, so divide the even one before multiplying
         val a = head.toLong
         val b = last.toLong
-        val ans = 
+        val ans =
           if ((numRangeElements & 1) == 0) (numRangeElements / 2) * (a + b)
           else numRangeElements * {
             // Sum is even, but we might overflow it, so divide in pieces and add back remainder