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-rw-r--r--src/library/scala/collection/parallel/ParMapLike.scala4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/library/scala/collection/parallel/ParMapLike.scala b/src/library/scala/collection/parallel/ParMapLike.scala
index 0a671fb085..a3ac388587 100644
--- a/src/library/scala/collection/parallel/ParMapLike.scala
+++ b/src/library/scala/collection/parallel/ParMapLike.scala
@@ -12,10 +12,8 @@ package collection.parallel
import scala.collection.MapLike
import scala.collection.GenMapLike
import scala.collection.Map
-import scala.collection.mutable.Builder
+
import scala.annotation.unchecked.uncheckedVariance
-import scala.collection.generic.IdleSignalling
-import scala.collection.generic.Signalling
/** A template trait for mutable parallel maps. This trait is to be mixed in
* with concrete parallel maps to override the representation type.