Disable splash screen for launches from widget.

The transition from a widget to the splash screen icon feels
odd because of the difference in shapes. Disable for S and rework that
in T.

Test: Manually tested with clock and Calendar
Bug: 197504657
Change-Id: Ia375885af967d6ad282dcc7325ad905731c8734d
diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepInteractionHandler.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepInteractionHandler.java
index c2c721a..1cf50f7 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepInteractionHandler.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepInteractionHandler.java
@@ -71,7 +71,7 @@
             }
         }
         activityOptions.options.setPendingIntentLaunchFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        activityOptions.options.setSplashscreenStyle(SplashScreen.SPLASH_SCREEN_STYLE_ICON);
+        activityOptions.options.setSplashscreenStyle(SplashScreen.SPLASH_SCREEN_STYLE_EMPTY);
         Object itemInfo = hostView.getTag();
         if (itemInfo instanceof ItemInfo) {
             mLauncher.addLaunchCookie((ItemInfo) itemInfo, activityOptions.options);