[SPARK-34541][CORE] revert

Author: yikf

core/src/test/scala/org/apache/spark/ShuffleSuite.scala

@@ -425,7 +425,7 @@ abstract class ShuffleSuite extends SparkFunSuite with Matchers with LocalSparkC
     manager.unregisterShuffle(0)
   }
 
-  test(s"SPARK-34541: shuffle can be removed when spark.shuffle.useOldFetchProtocol=true") {
+  test("SPARK-34541: shuffle can be removed") {
     withTempDir { tmpDir =>
       def getAllFiles: Set[File] =
         FileUtils.listFiles(tmpDir, TrueFileFilter.INSTANCE, TrueFileFilter.INSTANCE).asScala.toSet

core/src/test/scala/org/apache/spark/shuffle/sort/SortShuffleManagerSuite.scala

@@ -130,4 +130,5 @@ class SortShuffleManagerSuite extends SparkFunSuite with Matchers {
       mapSideCombine = true
     )))
   }
+
 }