Update SparkSqlParserSuite.scala

Author: AngersZhuuuu

sql/core/src/test/scala/org/apache/spark/sql/execution/SparkSqlParserSuite.scala

@@ -25,8 +25,6 @@ import org.apache.spark.sql.catalyst.TableIdentifier
 import org.apache.spark.sql.catalyst.analysis.{AnalysisTest, UnresolvedAlias, UnresolvedAttribute, UnresolvedRelation, UnresolvedStar}
 import org.apache.spark.sql.catalyst.catalog.{BucketSpec, CatalogStorageFormat, CatalogTable, CatalogTableType}
 import org.apache.spark.sql.catalyst.expressions.{Ascending, AttributeReference, Concat, SortOrder}
-import org.apache.spark.sql.catalyst.parser.CatalystSqlParser
-import org.apache.spark.sql.catalyst.parser.ParserUtils.string
 import org.apache.spark.sql.catalyst.plans.logical._
 import org.apache.spark.sql.execution.command._
 import org.apache.spark.sql.execution.datasources.{CreateTable, RefreshResource}