Remove the old task manager view

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 5df0d15047a18e831fca9ca887966c536485238c..cf50ab336b81c173de8cbabf4c37cea10100b29f 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -6593,14 +6593,6 @@ Keep your key file in a safe place. You will need it to create new versions of y
           Enable hardware-accelerated mjpeg decode for captured frame where available.
         </message>
       </if>
-      <if expr="enable_task_manager">
-        <message name="IDS_FLAGS_NEW_TASK_MANAGER_NAME" desc="Name of the flag for the new implementation of the task manager.">
-          New task manager
-        </message>
-        <message name="IDS_FLAGS_NEW_TASK_MANAGER_DESCRIPTION" desc="Description of the flag for the new implementation of the task manager.">
-          Use the new and optimized implementation of the chrome task manager.
-        </message>
-      </if>
       <message name="IDS_FLAGS_SIMPLIFIED_FULLSCREEN_UI_NAME" desc="Name of the flag to enable the new simplified fullscreen and mouse lock UI.">
         Simplified full screen / mouse lock UI.
       </message>