[Test] Update all SixSpeed tests to run in separate processes.

test/js-perf-test/SixSpeed/super_spread/run.js

Index: test/js-perf-test/SixSpeed/super_spread/run.js
diff --git a/test/js-perf-test/SixSpeed/super_spread/run.js b/test/js-perf-test/SixSpeed/super_spread/run.js
deleted file mode 100644
index 3025caf8a8d35c0ea2c001c0a90c7750fca2de46..0000000000000000000000000000000000000000
--- a/test/js-perf-test/SixSpeed/super_spread/run.js
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2017 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-load('../../base.js');
-load(arguments[0] + '.js');
-
-var success = true;
-
-function PrintResult(name, result) {
-  print(name + '(Score): ' + result);
-}
-
-function PrintError(name, error) {
-  PrintResult(name, error);
-  success = false;
-}
-
-BenchmarkSuite.config.doWarmup = true;
-BenchmarkSuite.config.doDeterministic = undefined;
-
-BenchmarkSuite.RunSuites({NotifyResult: PrintResult, NotifyError: PrintError});