Remove redundant table layout call

Author: pradeepvaka

presto-main-base/src/main/java/com/facebook/presto/sql/planner/PlannerUtils.java

@@ -23,7 +23,6 @@
 import com.facebook.presto.cost.StatsAndCosts;
 import com.facebook.presto.metadata.FunctionAndTypeManager;
 import com.facebook.presto.metadata.Metadata;
-import com.facebook.presto.metadata.TableLayout;
 import com.facebook.presto.spi.ColumnHandle;
 import com.facebook.presto.spi.SourceLocation;
 import com.facebook.presto.spi.TableHandle;
@@ -326,7 +325,6 @@ private static PlanNode cloneProjectNode(ProjectNode projectNode, Session sessio
     private static TableScanNode cloneTableScan(TableScanNode scanNode, Session session, Metadata metadata, PlanNodeIdAllocator planNodeIdAllocator, List<VariableReferenceExpression> fieldsToKeep, Map<VariableReferenceExpression, VariableReferenceExpression> varMap)
     {
         Map<VariableReferenceExpression, ColumnHandle> assignments = scanNode.getAssignments();
-        TableLayout scanLayout = metadata.getLayout(session, scanNode.getTable());
 
         ImmutableList.Builder<VariableReferenceExpression> outputVariablesBuilder = ImmutableList.builder();