Merge pull request #307 from kayousterhout/other_failure

Removed unused OtherFailure TaskEndReason.

The OtherFailure TaskEndReason was added by @mateiz 3 years ago in this commit: https://github.com/apache/incubator-spark/commit/24a1e7f8380bfd8d4fbdda688482a451bd6ea215

Unless I am missing something, it doesn't seem to have been used then, and is not used now, so seems safe for deletion.

core/src/main/scala/org/apache/spark/TaskEndReason.scala

@@ -53,5 +53,3 @@ private[spark] case class ExceptionFailure(
 private[spark] case object TaskResultLost extends TaskEndReason
 
 private[spark] case object TaskKilled extends TaskEndReason
-
-private[spark] case class OtherFailure(message: String) extends TaskEndReason

core/src/main/scala/org/apache/spark/scheduler/JobLogger.scala

@@ -328,10 +328,6 @@ class JobLogger(val user: String, val logDirName: String)
                       task.stageId + " SHUFFLE_ID=" + shuffleId + " MAP_ID=" +
                       mapId + " REDUCE_ID=" + reduceId
         stageLogInfo(task.stageId, taskStatus)
-      case OtherFailure(message) =>
-        taskStatus += " STATUS=FAILURE TID=" + taskInfo.taskId +
-                      " STAGE_ID=" + task.stageId + " INFO=" + message
-        stageLogInfo(task.stageId, taskStatus)
       case _ =>
     }
   }