Remove duplicate method in KeyguardUpdateMonitor

Bug: 238187419
Test: atest KeyguardUpdateMonitor
Change-Id: I078aec41c15726aacb736fd8493645fa23856bd5

packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitor.java

@@ -2380,10 +2380,6 @@ public class KeyguardUpdateMonitor implements TrustManager.TrustListener, Dumpab
         stopListeningForFace(FACE_AUTH_STOPPED_USER_INPUT_ON_BOUNCER);
     }
 
-    public boolean isFaceScanning() {
-        return mFaceRunningState == BIOMETRIC_STATE_RUNNING;
-    }
-
     private void updateFaceListeningState(int action, @NonNull FaceAuthUiEvent faceAuthUiEvent) {
         // If this message exists, we should not authenticate again until this message is
         // consumed by the handler

packages/SystemUI/src/com/android/systemui/FaceScanningOverlay.kt

@@ -123,7 +123,7 @@ class FaceScanningOverlay(
     }
 
     override fun enableShowProtection(show: Boolean) {
-        val showScanningAnimNow = keyguardUpdateMonitor.isFaceScanning && show
+        val showScanningAnimNow = keyguardUpdateMonitor.isFaceDetectionRunning && show
         if (showScanningAnimNow == showScanningAnim) {
             return
         }

packages/SystemUI/src/com/android/systemui/decor/FaceScanningProviderFactory.kt

@@ -99,7 +99,7 @@ class FaceScanningProviderFactory @Inject constructor(
     }
 
     fun shouldShowFaceScanningAnim(): Boolean {
-        return canShowFaceScanningAnim() && keyguardUpdateMonitor.isFaceScanning
+        return canShowFaceScanningAnim() && keyguardUpdateMonitor.isFaceDetectionRunning
     }
 }