andygrove commented on code in PR #1525:
URL: https://github.com/apache/datafusion-comet/pull/1525#discussion_r2003780906


##########
spark/src/main/scala/org/apache/spark/Plugins.scala:
##########
@@ -63,13 +63,10 @@ class CometDriverPlugin extends DriverPlugin with Logging 
with ShimCometDriverPl
         Math.max((executorMemory * memoryOverheadFactor).toLong, 
memoryOverheadMinMib)
       }
 
-      val cometMemOverhead =
-        if 
(!CometSparkSessionExtensions.cometUnifiedMemoryManagerEnabled(sc.getConf)) {
-          CometSparkSessionExtensions.getCometMemoryOverheadInMiB(sc.getConf)
-        } else {
-          // comet shuffle unified memory manager is disabled, so we need to 
add overhead memory
-          
CometSparkSessionExtensions.getCometShuffleMemorySizeInMiB(sc.getConf)

Review Comment:
   This code was unreachable and was added here before we supported unified 
memory manager for columnar shuffle



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