Revert "[AllApps][Work] Introduce work toggle Fab"

This reverts commit 08cca82eca.

Reason for revert: broke errorprone build
Bug: 190150515

Change-Id: I1d8707392310e745713b8780bdb957299b88a3a6

src/com/android/launcher3/allapps/LauncherAllAppsContainerView.java

@@ -25,6 +25,7 @@ import android.view.MotionEvent;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.statemanager.StateManager.StateListener;
+import com.android.launcher3.views.WorkEduView;
 
 /**
  * AllAppsContainerView with launcher specific callbacks
@@ -87,6 +88,13 @@ public class LauncherAllAppsContainerView extends AllAppsContainerView {
     @Override
     public void onActivePageChanged(int currentActivePage) {
         super.onActivePageChanged(currentActivePage);
+        if (mUsingTabs) {
+            if (currentActivePage == AdapterHolder.WORK) {
+                WorkEduView.showWorkEduIfNeeded(mLauncher);
+            } else {
+                mWorkTabListener = WorkEduView.showEduFlowIfNeeded(mLauncher, mWorkTabListener);
+            }
+        }
     }
 
     @Override