diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/ISplitScreen.aidl b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/ISplitScreen.aidl
index f819bee2d5e09..81e118a31b73f 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/ISplitScreen.aidl
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/ISplitScreen.aidl
@@ -129,10 +129,9 @@ interface ISplitScreen {
     /**
      * Start a pair of intents in one transition.
      */
-    oneway void startIntents(in PendingIntent pendingIntent1, in ShortcutInfo shortcutInfo1,
-            in Bundle options1, in PendingIntent pendingIntent2, in ShortcutInfo shortcutInfo2,
-            in Bundle options2, int splitPosition, float splitRatio,
-            in RemoteTransition remoteTransition, in InstanceId instanceId) = 19;
+    oneway void startIntents(in PendingIntent pendingIntent1, in Bundle options1,
+            in PendingIntent pendingIntent2, in Bundle options2, int splitPosition,
+            float splitRatio, in RemoteTransition remoteTransition, in InstanceId instanceId) = 19;
 
     /**
      * Blocking call that notifies and gets additional split-screen targets when entering
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreenController.java b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreenController.java
index 2cd16be9590cb..7d5ab8428a3e7 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreenController.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreenController.java
@@ -626,35 +626,6 @@ public class SplitScreenController implements DragAndDropPolicy.Starter,
                 splitPosition, splitRatio, adapter, instanceId);
     }
 
-    private void startIntents(PendingIntent pendingIntent1,
-            @Nullable ShortcutInfo shortcutInfo1, @Nullable Bundle options1,
-            PendingIntent pendingIntent2, @Nullable ShortcutInfo shortcutInfo2,
-            @Nullable Bundle options2, @SplitPosition int splitPosition, float splitRatio,
-            @Nullable RemoteTransition remoteTransition, InstanceId instanceId) {
-        Intent fillInIntent1 = null;
-        Intent fillInIntent2 = null;
-        final String packageName1 = SplitScreenUtils.getPackageName(pendingIntent1);
-        final String packageName2 = SplitScreenUtils.getPackageName(pendingIntent2);
-        if (samePackage(packageName1, packageName2)) {
-            if (supportMultiInstancesSplit(packageName1)) {
-                fillInIntent1 = new Intent();
-                fillInIntent1.addFlags(FLAG_ACTIVITY_MULTIPLE_TASK);
-                fillInIntent2 = new Intent();
-                fillInIntent2.addFlags(FLAG_ACTIVITY_MULTIPLE_TASK);
-                ProtoLog.v(ShellProtoLogGroup.WM_SHELL_SPLIT_SCREEN, "Adding MULTIPLE_TASK");
-            } else {
-                pendingIntent2 = null;
-                ProtoLog.v(ShellProtoLogGroup.WM_SHELL_SPLIT_SCREEN,
-                        "Cancel entering split as not supporting multi-instances");
-                Toast.makeText(mContext, R.string.dock_multi_instances_not_supported_text,
-                        Toast.LENGTH_SHORT).show();
-            }
-        }
-        mStageCoordinator.startIntents(pendingIntent1, fillInIntent1, shortcutInfo1, options1,
-                pendingIntent2, fillInIntent2, shortcutInfo2, options2, splitPosition, splitRatio,
-                remoteTransition, instanceId);
-    }
-
     @Override
     public void startIntent(PendingIntent intent, @Nullable Intent fillInIntent,
             @SplitPosition int position, @Nullable Bundle options) {
@@ -1095,17 +1066,11 @@ public class SplitScreenController implements DragAndDropPolicy.Starter,
         }
 
         @Override
-        public void startIntents(PendingIntent pendingIntent1, @Nullable ShortcutInfo shortcutInfo1,
-                @Nullable Bundle options1, PendingIntent pendingIntent2,
-                @Nullable ShortcutInfo shortcutInfo2, @Nullable Bundle options2,
+        public void startIntents(PendingIntent pendingIntent1, @Nullable Bundle options1,
+                PendingIntent pendingIntent2, @Nullable Bundle options2,
                 @SplitPosition int splitPosition, float splitRatio,
                 @Nullable RemoteTransition remoteTransition, InstanceId instanceId) {
-            executeRemoteCallWithTaskPermission(mController, "startIntents",
-                    (controller) ->
-                            controller.startIntents(pendingIntent1, shortcutInfo1,
-                                    options1, pendingIntent2, shortcutInfo2, options2,
-                                    splitPosition, splitRatio, remoteTransition, instanceId)
-            );
+            // TODO(b/259368992): To be implemented.
         }
 
         @Override
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
index f00fdba507481..dd91a37039e42 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
@@ -682,46 +682,6 @@ public class StageCoordinator implements SplitLayout.SplitLayoutHandler,
         setEnterInstanceId(instanceId);
     }
 
-    void startIntents(PendingIntent pendingIntent1, Intent fillInIntent1,
-            @Nullable ShortcutInfo shortcutInfo1, @Nullable Bundle options1,
-            PendingIntent pendingIntent2, Intent fillInIntent2,
-            @Nullable ShortcutInfo shortcutInfo2, @Nullable Bundle options2,
-            @SplitPosition int splitPosition, float splitRatio,
-            @Nullable RemoteTransition remoteTransition, InstanceId instanceId) {
-        final WindowContainerTransaction wct = new WindowContainerTransaction();
-        if (!mMainStage.isActive()) {
-            // Build a request WCT that will launch both apps such that task 0 is on the main stage
-            // while task 1 is on the side stage.
-            mMainStage.activate(wct, false /* reparent */);
-        }
-
-        prepareEvictChildTasksIfSplitActive(wct);
-        mSplitLayout.setDivideRatio(splitRatio);
-        updateWindowBounds(mSplitLayout, wct);
-        wct.reorder(mRootTaskInfo.token, true);
-        setRootForceTranslucent(false, wct);
-
-        setSideStagePosition(splitPosition, wct);
-        options1 = options1 != null ? options1 : new Bundle();
-        addActivityOptions(options1, mSideStage);
-        if (shortcutInfo1 != null) {
-            wct.startShortcut(mContext.getPackageName(), shortcutInfo1, options1);
-        } else {
-            wct.sendPendingIntent(pendingIntent1, fillInIntent1, options1);
-        }
-        options2 = options2 != null ? options2 : new Bundle();
-        addActivityOptions(options2, mMainStage);
-        if (shortcutInfo2 != null) {
-            wct.startShortcut(mContext.getPackageName(), shortcutInfo2, options2);
-        } else {
-            wct.sendPendingIntent(pendingIntent2, fillInIntent2, options2);
-        }
-
-        mSplitTransitions.startEnterTransition(
-                TRANSIT_SPLIT_SCREEN_PAIR_OPEN, wct, remoteTransition, this, null, null);
-        setEnterInstanceId(instanceId);
-    }
-
     /** Starts a pair of tasks using legacy transition. */
     void startTasksWithLegacyTransition(int taskId1, @Nullable Bundle options1,
             int taskId2, @Nullable Bundle options2, @SplitPosition int splitPosition,