Revert "Temporarily disable Launcher3 tests affected by fling changes"

This reverts commit bc4dc49c6c.

Reason for revert: RecyclerView bug is fixed

Change-Id: Ia2a677f3a3987751349bad951ff136b2d55f439f
Test: presubmit
Bug: 197802324
(cherry picked from commit 8b4a6ee65b)

quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java

@@ -223,7 +223,6 @@ public class TaplTestsQuickstep extends AbstractQuickStepTest {
     }
 
     @Test
-    @Ignore("b/197802324")
     @PortraitLandscape
     public void testAllAppsFromHome() throws Exception {
         // Test opening all apps

tests/src/com/android/launcher3/ui/TaplTestsLauncher3.java

@@ -250,7 +250,6 @@ public class TaplTestsLauncher3 extends AbstractLauncherUiTest {
     }
 
     @Test
-    @Ignore("b/197802324")
     @PortraitLandscape
     public void testWidgets() throws Exception {
         // Test opening widgets.