Revert "Fix run_multiple_telemetry_benchmarks_as_googletest.py compile targets"

This reverts commit aa3c707d.

Reason for revert: Didn't do anything

Original change's description:
> Fix run_multiple_telemetry_benchmarks_as_googletest.py compile targets
> 
> https://build.chromium.org/p/chromium.perf.fyi/builders/One%20Buildbot%20Step%20Test%20Builder
> is failing because the isolate target isn't being built on Linux Builder.
> 
> Bug: 758630
> Change-Id: I793fed5a265b21762ba0a0cb6a669a3ba79f7ef6
> Reviewed-on: https://chromium-review.googlesource.com/683462
> Reviewed-by: Ned Nguyen <nednguyen@google.com>
> Commit-Queue: Stephen Martinis <martiniss@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#504500}

TBR=nednguyen@google.com,martiniss@chromium.org,eyaich@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 758630
Change-Id: Iab205ccbc2b1ce5042746bea28a2d2dcebb4faa3
Reviewed-on: https://chromium-review.googlesource.com/690637Reviewed-by: Stephen Martinis <martiniss@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Stephen Martinis <martiniss@chromium.org>
Cr-Commit-Position: refs/heads/master@{#505260}

testing/scripts/run_multiple_telemetry_benchmarks_as_googletest.py

@@ -100,9 +100,7 @@ def main():
 # This is not really a "script test" so does not need to manually add
 # any additional compile targets.
 def main_compile_targets(args):
-  # Force compilation of the new isolate. Will change to telemetry_perf_tests
-  # once we switch the main isolate over to running this file.
-  json.dump(['telemetry_perf_tests_new'], args.output)
+  json.dump([], args.output)
 
 
 if __name__ == '__main__':