[HUDI-4178] Addressing performance regressions in Spark DataSourceV2 Integration (#5737)

There are multiple issues with our current DataSource V2 integrations: b/c we advertise Hudi tables as V2, Spark expects it to implement certain APIs which are not implemented at the moment, instead we're using custom Resolution rule (in HoodieSpark3Analysis) to instead manually fallback to V1 APIs.  This commit fixes the issue by reverting DSv2 APIs and making Spark use V1, except for schema evaluation logic.

hudi-spark-datasource/hudi-spark2/src/main/scala/org/apache/spark/sql/adapter/Spark2Adapter.scala

@@ -159,12 +159,6 @@ class Spark2Adapter extends SparkAdapter {
     throw new IllegalStateException(s"Should not call getRelationTimeTravel for spark2")
   }
 
-  override def createResolveHudiAlterTableCommand(sparkSession: SparkSession): Rule[LogicalPlan] = {
-    new Rule[LogicalPlan] {
-      override def apply(plan: LogicalPlan): LogicalPlan = plan
-    }
-  }
-
   override def createHoodieParquetFileFormat(appendPartitionValues: Boolean): Option[ParquetFileFormat] = {
     Some(new Spark24HoodieParquetFileFormat(appendPartitionValues))
   }