diff --git a/services/accessibility/java/com/android/server/accessibility/magnification/FullScreenMagnificationGestureHandler.java b/services/accessibility/java/com/android/server/accessibility/magnification/FullScreenMagnificationGestureHandler.java
index 7483ff3ef3f43..8dc9db53b77f1 100644
--- a/services/accessibility/java/com/android/server/accessibility/magnification/FullScreenMagnificationGestureHandler.java
+++ b/services/accessibility/java/com/android/server/accessibility/magnification/FullScreenMagnificationGestureHandler.java
@@ -395,7 +395,6 @@ public class FullScreenMagnificationGestureHandler extends MagnificationGestureH
             if (DEBUG_PANNING_SCALING) Slog.i(mLogTag, "Scaled content to: " + scale + "x");
             mFullScreenMagnificationController.setScale(mDisplayId, scale, pivotX, pivotY, false,
                     AccessibilityManagerService.MAGNIFICATION_GESTURE_HANDLER_ID);
-            mListener.onMagnificationScaleChanged(mDisplayId, getMode());
             return /* handled: */ true;
         }
 
diff --git a/services/accessibility/java/com/android/server/accessibility/magnification/MagnificationController.java b/services/accessibility/java/com/android/server/accessibility/magnification/MagnificationController.java
index df88ceb95d9e1..48390fdbc760e 100644
--- a/services/accessibility/java/com/android/server/accessibility/magnification/MagnificationController.java
+++ b/services/accessibility/java/com/android/server/accessibility/magnification/MagnificationController.java
@@ -84,16 +84,6 @@ public class MagnificationController implements WindowMagnificationManager.Callb
     public void onPerformScaleAction(int displayId, float scale) {
         getWindowMagnificationMgr().setScale(displayId, scale);
         getWindowMagnificationMgr().persistScale(displayId);
-        onMagnificationScaleChanged(displayId,
-                Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_WINDOW);
-    }
-
-    @Override
-    public void onMagnificationScaleChanged(int displayId, int mode) {
-        if (mMagnificationCapabilities != Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_ALL) {
-            return;
-        }
-        getWindowMagnificationMgr().showMagnificationButton(displayId, mode);
     }
 
     /**
diff --git a/services/accessibility/java/com/android/server/accessibility/magnification/MagnificationGestureHandler.java b/services/accessibility/java/com/android/server/accessibility/magnification/MagnificationGestureHandler.java
index 386d0bbf35ec4..f8a675d1849ef 100644
--- a/services/accessibility/java/com/android/server/accessibility/magnification/MagnificationGestureHandler.java
+++ b/services/accessibility/java/com/android/server/accessibility/magnification/MagnificationGestureHandler.java
@@ -61,13 +61,7 @@ public abstract class MagnificationGestureHandler extends BaseEventStreamTransfo
 
     /** Interface for listening to the magnification scaling gesture. */
     public interface ScaleChangedListener {
-        /**
-         * Called when the magnification scale is changed by users.
-         *
-         * @param displayId The logical display id
-         * @param mode      The magnification mode
-         */
-        void onMagnificationScaleChanged(int displayId, int mode);
+
     }
 
     protected final ScaleChangedListener mListener;
diff --git a/services/accessibility/java/com/android/server/accessibility/magnification/WindowMagnificationGestureHandler.java b/services/accessibility/java/com/android/server/accessibility/magnification/WindowMagnificationGestureHandler.java
index 7f26b27559002..c6a5ed8067f4d 100644
--- a/services/accessibility/java/com/android/server/accessibility/magnification/WindowMagnificationGestureHandler.java
+++ b/services/accessibility/java/com/android/server/accessibility/magnification/WindowMagnificationGestureHandler.java
@@ -115,7 +115,6 @@ public class WindowMagnificationGestureHandler extends MagnificationGestureHandl
                             @Override
                             public void setScale(int displayId, float scale) {
                                 mWindowMagnificationMgr.setScale(displayId, scale);
-                                mListener.onMagnificationScaleChanged(displayId, getMode());
                             }
 
                             @Override
diff --git a/services/tests/servicestests/src/com/android/server/accessibility/magnification/FullScreenMagnificationGestureHandlerTest.java b/services/tests/servicestests/src/com/android/server/accessibility/magnification/FullScreenMagnificationGestureHandlerTest.java
index c038a0f339045..531f513b00e8f 100644
--- a/services/tests/servicestests/src/com/android/server/accessibility/magnification/FullScreenMagnificationGestureHandlerTest.java
+++ b/services/tests/servicestests/src/com/android/server/accessibility/magnification/FullScreenMagnificationGestureHandlerTest.java
@@ -42,7 +42,6 @@ import android.content.Context;
 import android.graphics.PointF;
 import android.os.Handler;
 import android.os.Message;
-import android.provider.Settings;
 import android.util.DebugUtils;
 import android.view.InputDevice;
 import android.view.MotionEvent;
@@ -554,8 +553,6 @@ public class FullScreenMagnificationGestureHandlerTest {
                 check(mMgh.mCurrentState == mMgh.mPanningScalingState,
                         state);
                 check(mMgh.mPanningScalingState.mScaling, state);
-                verify(mMockScaleChangedListener).onMagnificationScaleChanged(DISPLAY_0,
-                        Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_FULLSCREEN);
             } break;
             default: throw new IllegalArgumentException("Illegal state: " + state);
         }
diff --git a/services/tests/servicestests/src/com/android/server/accessibility/magnification/MagnificationControllerTest.java b/services/tests/servicestests/src/com/android/server/accessibility/magnification/MagnificationControllerTest.java
index cba618bf94b8f..d8b19d3d7ad20 100644
--- a/services/tests/servicestests/src/com/android/server/accessibility/magnification/MagnificationControllerTest.java
+++ b/services/tests/servicestests/src/com/android/server/accessibility/magnification/MagnificationControllerTest.java
@@ -278,32 +278,6 @@ public class MagnificationControllerTest {
 
         verify(mWindowMagnificationManager).setScale(eq(TEST_DISPLAY), eq(newScale));
         verify(mWindowMagnificationManager).persistScale(eq(TEST_DISPLAY));
-        verify(mMagnificationController).onMagnificationScaleChanged(eq(TEST_DISPLAY),
-                eq(MODE_WINDOW));
-    }
-
-    @Test
-    public void onMagnificationScaleChanged_capabilitiesAllMode_showMagnificationButton()
-            throws RemoteException {
-        mMagnificationController.setMagnificationCapabilities(
-                Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_ALL);
-
-        mMagnificationController.onMagnificationScaleChanged(TEST_DISPLAY, MODE_WINDOW);
-
-        verify(mWindowMagnificationManager).showMagnificationButton(eq(TEST_DISPLAY),
-                eq(MODE_WINDOW));
-    }
-
-    @Test
-    public void onMagnificationScaleChanged_capabilitiesNotAllMode_notShowMagnificationButton()
-            throws RemoteException {
-        mMagnificationController.setMagnificationCapabilities(
-                Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_FULLSCREEN);
-
-        mMagnificationController.onMagnificationScaleChanged(TEST_DISPLAY, MODE_WINDOW);
-
-        verify(mWindowMagnificationManager, never()).showMagnificationButton(eq(TEST_DISPLAY),
-                eq(MODE_WINDOW));
     }
 
     private void setMagnificationEnabled(int mode) throws RemoteException {