Revert of add more polymer tests

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 afd2182dafd23dc860588d2787f5be848e68f64f..66c7d4d736728bc4ff015dea49a7f7b9c4245039 100644
--- a/tools/perf/benchmarks/thread_times.py
+++ b/tools/perf/benchmarks/thread_times.py
@@ -45,11 +45,3 @@
   @classmethod
   def GetName(cls):
     return "fast_path.key_mobile_sites"
-
-
-class ThreadTimesPolymer(test.Test):
-  """Measures timeline metrics while performing smoothness action on
-  Polymer cases."""
-  test = thread_times.ThreadTimes
-  page_set = "page_sets/polymer.py"
-  options = { 'report_silk_results': True }