code formatting

Author: Liquan Pei

mllib/src/main/scala/org/apache/spark/mllib/feature/Word2Vec.scala

@@ -18,9 +18,8 @@
 
 package org.apache.spark.mllib.feature
 
-import scala.util._
+import scala.util.{Random => Random}
 import scala.collection.mutable.ArrayBuffer
-import scala.collection.mutable.HashMap
 import scala.collection.mutable
 
 import com.github.fommil.netlib.BLAS.{getInstance => blas}
@@ -373,4 +372,4 @@ object Word2Vec extends Serializable with Logging {
     minCount: Int): Word2VecModel = {
     new Word2Vec(size,startingAlpha, window, minCount).fit(input)
   }
-}
+}

mllib/src/test/scala/org/apache/spark/mllib/feature/Word2VecSuite.scala

@@ -37,4 +37,4 @@ class Word2VecSuite extends FunSuite with LocalSparkContext {
     assert(synons(0)._1 == "taiwan")
     assert(synons(1)._1 == "japan")
   }
-}
+}