[SPARK-50729][SQL][TESTS] Remove DebugFilesystem from TPCDS(Collation)?QueryTestSuite

### What changes were proposed in this pull request?

This PR aims to remove `DebugFilesystem` from `TPCDS(Collation)?QueryTestSuite` while keeping it in all other places.

### Why are the changes needed?

`TPCDS(Collation)?QueryTestSuite` extends `TPCDSBase` and `TPCHBase` respectively and they are based on `TPCBase` which extends `SharedSparkSession`.
https://github.com/apache/spark/blob/91f3fdd25852b43095dd5273358fc394ffd11b66/sql/core/src/test/scala/org/apache/spark/sql/TPCBase.scala#L24

And, `SharedSparkSession` always uses `DebugFilesystem`.
https://github.com/apache/spark/blob/91f3fdd25852b43095dd5273358fc394ffd11b66/sql/core/src/test/scala/org/apache/spark/sql/test/SharedSparkSession.scala#L68

This PR aims to remove this resetting.

### Does this PR introduce _any_ user-facing change?

No, this is a test-only change.

### How was this patch tested?

Manual review.

### Was this patch authored or co-authored using generative AI tooling?

No.

Closes #49359 from dongjoon-hyun/SPARK-50729.

Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Kent Yao <yao@apache.org>

Author: dongjoon-hyun

sql/core/src/test/scala/org/apache/spark/sql/TPCDSCollationQueryTestSuite.scala

@@ -67,6 +67,7 @@ class TPCDSCollationQueryTestSuite extends QueryTest with TPCDSBase with SQLQuer
   // To make output results deterministic
   override protected def sparkConf: SparkConf = super.sparkConf
     .set(SQLConf.SHUFFLE_PARTITIONS.key, "1")
+    .remove("spark.hadoop.fs.file.impl")
 
   protected override def createSparkSession: TestSparkSession = {
     new TestSparkSession(new SparkContext("local[1]", this.getClass.getSimpleName, sparkConf))

sql/core/src/test/scala/org/apache/spark/sql/TPCDSQueryTestSuite.scala

@@ -62,6 +62,7 @@ class TPCDSQueryTestSuite extends QueryTest with TPCDSBase with SQLQueryTestHelp
   // To make output results deterministic
   override protected def sparkConf: SparkConf = super.sparkConf
     .set(SQLConf.SHUFFLE_PARTITIONS.key, "1")
+    .remove("spark.hadoop.fs.file.impl")
 
   protected override def createSparkSession: TestSparkSession = {
     new TestSparkSession(new SparkContext("local[1]", this.getClass.getSimpleName, sparkConf))