[Telemetry refactor] Drop "2" from method calls to JS API

tools/perf/benchmarks/jetstream.py

Index: tools/perf/benchmarks/jetstream.py
diff --git a/tools/perf/benchmarks/jetstream.py b/tools/perf/benchmarks/jetstream.py
index ec1be5f696364ca69794bfd464313358299cbafb..1231481d545c13d7ad02341b38c03096ad125c96 100644
--- a/tools/perf/benchmarks/jetstream.py
+++ b/tools/perf/benchmarks/jetstream.py
@@ -48,8 +48,8 @@ class _JetstreamMeasurement(legacy_page_test.LegacyPageTest):
   def ValidateAndMeasurePage(self, page, tab, results):
     del page  # unused
     tab.WaitForDocumentReadyStateToBeComplete()
-    tab.EvaluateJavaScript2('JetStream.start()')
-    result = tab.WaitForJavaScriptCondition2("""
+    tab.EvaluateJavaScript('JetStream.start()')
+    result = tab.WaitForJavaScriptCondition("""
         (function() {
           for (var i = 0; i < __results.length; i++) {
             if (!__results[i].indexOf('Raw results: ')) return __results[i];