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

tools/perf/page_sets/system_health/long_running_stories.py

Index: tools/perf/page_sets/system_health/long_running_stories.py
diff --git a/tools/perf/page_sets/system_health/long_running_stories.py b/tools/perf/page_sets/system_health/long_running_stories.py
index 809971d85576db9ec80981b3dc1b024f8db6d536..a32ea451042d077a37e124b23dc57a1a60f27e13 100644
--- a/tools/perf/page_sets/system_health/long_running_stories.py
+++ b/tools/perf/page_sets/system_health/long_running_stories.py
@@ -65,12 +65,12 @@ class _LongRunningGmailMobileBase(_LongRunningGmailBase):
 
   def _DidLoadDocument(self, action_runner):
     # Close the "Get Inbox by Gmail" interstitial.
-    action_runner.WaitForJavaScriptCondition2(
+    action_runner.WaitForJavaScriptCondition(
         'document.querySelector("#isppromo a") !== null')
-    action_runner.ExecuteJavaScript2(
+    action_runner.ExecuteJavaScript(
         'document.querySelector("#isppromo a").click()')
     # Wait until the UI loads.
-    action_runner.WaitForJavaScriptCondition2(
+    action_runner.WaitForJavaScriptCondition(
         'document.getElementById("apploadingdiv").style.height === "0px"')
 
 
@@ -79,7 +79,7 @@ class _LongRunningGmailDesktopBase(_LongRunningGmailBase):
 
   def _DidLoadDocument(self, action_runner):
     # Wait until the UI loads.
-    action_runner.WaitForJavaScriptCondition2(
+    action_runner.WaitForJavaScriptCondition(
         'document.getElementById("loading").style.display === "none"')