remove unused variable in test_scripts/verify_runtime.ps1

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Hashara

test_scripts/verify_runtime.ps1

@@ -6,7 +6,7 @@ $WD = "test_scripts/test_data"
 $expectedFile = Join-Path $WD "expected_runtime.tsv"
 $reportedFile = "time_log.tsv"
 $selectedColumnsFile = Join-Path $WD "selected_columns.tsv"
-$reportedColumnFile = "$env:TEMP\reported_column.tsv"
+# Removed $reportedColumnFile as it is not used elsewhere
 $finalFile = Join-Path $WD "combined_with_reported.tsv"
 
 # Get the header and find the index of the expected column name