Cleanup NOTIFICATION_ANIMATE_BIG_PICTURE flag.

Bug: 268354973
Test: Flag cleanup; existing tests for behavior should continue to pass.
Change-Id: I7809ce3fd5f0ded6245d855ee4a1e999e959de47
diff --git a/packages/SystemUI/src/com/android/systemui/flags/Flags.kt b/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
index 012c8cf..2987004 100644
--- a/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
+++ b/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
@@ -108,11 +108,6 @@
     val NOTIFICATION_SHELF_REFACTOR =
         unreleasedFlag(271161129, "notification_shelf_refactor")
 
-    // TODO(b/263414400): Tracking Bug
-    @JvmField
-    val NOTIFICATION_ANIMATE_BIG_PICTURE =
-        releasedFlag(120, "notification_animate_big_picture")
-
     @JvmField
     val ANIMATED_NOTIFICATION_SHADE_INSETS =
         releasedFlag(270682168, "animated_notification_shade_insets")
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/ExpandableNotificationRow.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/ExpandableNotificationRow.java
index a9d1255..98b4cc4 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/ExpandableNotificationRow.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/ExpandableNotificationRow.java
@@ -419,15 +419,9 @@
      */
     public void setAnimationRunning(boolean running) {
         // Sets animations running in the private/public layouts.
-        if (mFeatureFlags.isEnabled(Flags.NOTIFICATION_ANIMATE_BIG_PICTURE)) {
-            for (NotificationContentView l : mLayouts) {
-                if (l != null) {
-                    l.setContentAnimationRunning(running);
-                    setIconAnimationRunning(running, l);
-                }
-            }
-        } else {
-            for (NotificationContentView l : mLayouts) {
+        for (NotificationContentView l : mLayouts) {
+            if (l != null) {
+                l.setContentAnimationRunning(running);
                 setIconAnimationRunning(running, l);
             }
         }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/row/ExpandableNotificationRowTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/row/ExpandableNotificationRowTest.java
index 7d02219..9186c35 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/row/ExpandableNotificationRowTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/row/ExpandableNotificationRowTest.java
@@ -100,7 +100,6 @@
         mNotificationTestHelper.setDefaultInflationFlags(FLAG_CONTENT_VIEW_ALL);
 
         FakeFeatureFlags fakeFeatureFlags = new FakeFeatureFlags();
-        fakeFeatureFlags.set(Flags.NOTIFICATION_ANIMATE_BIG_PICTURE, true);
         fakeFeatureFlags.set(Flags.SENSITIVE_REVEAL_ANIM, false);
         mNotificationTestHelper.setFeatureFlags(fakeFeatureFlags);
     }