Lint fix

Author: aayushmaanjain

sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/PropagateEmptyRelationSuite.scala

@@ -23,8 +23,7 @@ import org.apache.spark.sql.catalyst.dsl.expressions._
 import org.apache.spark.sql.catalyst.dsl.plans._
 import org.apache.spark.sql.catalyst.expressions.Literal
 import org.apache.spark.sql.catalyst.plans._
-import org.apache.spark.sql.catalyst.plans.logical.{Distinct, GlobalLimit, LocalLimit,
-  LocalRelation, LogicalPlan, Project}
+import org.apache.spark.sql.catalyst.plans.logical.{Distinct, GlobalLimit, LocalLimit, LocalRelation, LogicalPlan, Project}
 import org.apache.spark.sql.catalyst.rules.RuleExecutor
 import org.apache.spark.sql.types.{IntegerType, StructType}