[Telemetry] Make our Enabled/Disabled annotations match what the bots run.

tools/perf/benchmarks/thread_times.py

Index: tools/perf/benchmarks/thread_times.py
diff --git a/tools/perf/benchmarks/thread_times.py b/tools/perf/benchmarks/thread_times.py
index 1ae79c63ffab21240597b640991fa5cb235125cb..db165cae590e581a5a000a7cb39c70181d44be8e 100644
--- a/tools/perf/benchmarks/thread_times.py
+++ b/tools/perf/benchmarks/thread_times.py
@@ -1,11 +1,11 @@
 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
-from telemetry import benchmark
 
 from benchmarks import silk_flags
 from measurements import thread_times
 import page_sets
+from telemetry import benchmark
 
 
 class ThreadTimesKeySilkCases(benchmark.Benchmark):
@@ -27,6 +27,7 @@ class ThreadTimesFastPathKeySilkCases(benchmark.Benchmark):
     silk_flags.CustomizeBrowserOptionsForFastPath(options)
 
 
+@benchmark.Disabled
 class LegacySilkBenchmark(ThreadTimesKeySilkCases):
   """Same as thread_times.key_silk_cases but with the old name."""
   @classmethod