Revert of [Telemetry] Switch clients to new JavaScript API (batch 5)

telemetry/telemetry/web_perf/timeline_based_page_test_unittest.py

Index: telemetry/telemetry/web_perf/timeline_based_page_test_unittest.py
diff --git a/telemetry/telemetry/web_perf/timeline_based_page_test_unittest.py b/telemetry/telemetry/web_perf/timeline_based_page_test_unittest.py
index b5bef524b8622068fd1d5ef45e3d789bbedb56b2..76b05e1b957b7379d78015761145535f7cdc57f6 100644
--- a/telemetry/telemetry/web_perf/timeline_based_page_test_unittest.py
+++ b/telemetry/telemetry/web_perf/timeline_based_page_test_unittest.py
@@ -28,13 +28,13 @@
   def RunPageInteractions(self, action_runner):
     if self._trigger_animation:
       action_runner.TapElement('#animating-button')
-      action_runner.WaitForJavaScriptCondition2('window.animationDone')
+      action_runner.WaitForJavaScriptCondition('window.animationDone')
     if self._trigger_jank:
       action_runner.TapElement('#jank-button')
-      action_runner.WaitForJavaScriptCondition2('window.jankScriptDone')
+      action_runner.WaitForJavaScriptCondition('window.jankScriptDone')
     if self._trigger_slow:
       action_runner.TapElement('#slow-button')
-      action_runner.WaitForJavaScriptCondition2('window.slowScriptDone')
+      action_runner.WaitForJavaScriptCondition('window.slowScriptDone')
     if self._trigger_scroll_gesture:
       with action_runner.CreateGestureInteraction('Scroll'):
         action_runner.ScrollPage()