Removed experimental app list flags. Experimental is now the only way.

chrome/browser/apps/custom_launcher_page_browsertest_views.cc

Index: chrome/browser/apps/custom_launcher_page_browsertest_views.cc
diff --git a/chrome/browser/apps/custom_launcher_page_browsertest_views.cc b/chrome/browser/apps/custom_launcher_page_browsertest_views.cc
index 0fd89d7aab47e5691042a7b665c274079109db8a..a0db749585b6752abad314a65b7ca41c1a2409e4 100644
--- a/chrome/browser/apps/custom_launcher_page_browsertest_views.cc
+++ b/chrome/browser/apps/custom_launcher_page_browsertest_views.cc
@@ -56,9 +56,6 @@ class CustomLauncherPageBrowserTest
   void SetUpCommandLine(base::CommandLine* command_line) override {
     PlatformAppBrowserTest::SetUpCommandLine(command_line);
 
-    // Custom launcher pages only work in the experimental app list.
-    command_line->AppendSwitch(app_list::switches::kEnableExperimentalAppList);
-
     // Ensure the app list does not close during the test.
     command_line->AppendSwitch(
         app_list::switches::kDisableAppListDismissOnBlur);