diff --git a/core/java/android/hardware/input/InputManager.java b/core/java/android/hardware/input/InputManager.java
index 6253fb90323ad..ef349a96ee17e 100644
--- a/core/java/android/hardware/input/InputManager.java
+++ b/core/java/android/hardware/input/InputManager.java
@@ -214,14 +214,6 @@ public final class InputManager {
     @ChangeId
     public static final long BLOCK_UNTRUSTED_TOUCHES = 158002302L;
 
-    /**
-     * Check whether apps are using FLAG_SLIPPERY for their windows. We expect that this flag is
-     * only used by the system components. If so, we can lock it down.
-     * @hide
-     */
-    @ChangeId
-    public static final long BLOCK_FLAG_SLIPPERY = android.os.IInputConstants.BLOCK_FLAG_SLIPPERY;
-
     /**
      * Input Event Injection Synchronization Mode: None.
      * Never blocks.  Injection is asynchronous and is assumed always to be successful.