`spark.blaze.enable.shuffle` doesn't work

[PengleiShi]

Describe the bug I try to disable coverting ShuffleExchangeExec, but it doesn't work. And i found the code

def convertSparkPlan(exec: SparkPlan): SparkPlan = {
    exec match {
      case e: ShuffleExchangeExec => tryConvert(e, convertShuffleExchangeExec)
    .....

It's not dependent on the configuration spark.blaze.enable.shuffle. To Reproduce Add configuration --conf spark.blaze.enable.shuffle=false when submit

Expected behavior Blaze extension should not covert ShuffleExchangeExec if spark.blaze.enable.shuffle is true.

Additional context

[PengleiShi]

ping @richox

[PengleiShi]

ping @yjshen