do not start/stop benchmark timer for no-ops

app/benchmark_internal_test.go

@@ -42,8 +42,6 @@ func readReportFiles(path string) ([]report.Report, error) {
 func BenchmarkReportUnmarshal(b *testing.B) {
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
-		b.StopTimer()
-		b.StartTimer()
 		if _, err := readReportFiles(*benchReportPath); err != nil {
 			b.Fatal(err)
 		}
@@ -58,9 +56,8 @@ func BenchmarkReportMerge(b *testing.B) {
 	merger := NewSmartMerger()
 
 	b.ResetTimer()
+
 	for i := 0; i < b.N; i++ {
-		b.StopTimer()
-		b.StartTimer()
 		merger.Merge(reports)
 	}
 }