remove Samsung Face Widget (signature-restricted, unusable by third-party apps)

Samsung's FACE_WIDGET permission requires platform signing, making it
impossible for non-Samsung apps to register lock screen face widgets.
The existing AppWidgetProvider already works via Good Lock LockStar and
will be natively supported on lock screens with One UI 8 / Android 16 QPR1.

src-tauri/gen/android/app/src/main/AndroidManifest.xml

@@ -2,8 +2,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
-    <uses-permission android:name="com.samsung.systemui.permission.FACE_WIDGET" />
-
     <!-- AndroidTV support -->
     <uses-feature android:name="android.software.leanback" android:required="false" />
 
@@ -100,20 +98,6 @@
             android:permission="android.permission.BIND_REMOTEVIEWS"
             android:exported="false" />
 
-        <!-- Samsung Lock Screen Face Widget -->
-        <receiver
-            android:name=".LockScreenWidgetReceiver"
-            android:permission="com.samsung.systemui.permission.FACE_WIDGET"
-            android:exported="true">
-            <intent-filter>
-                <action android:name="com.samsung.android.intent.action.REQUEST_SERVICEBOX_REMOTEVIEWS" />
-            </intent-filter>
-        </receiver>
-
-        <meta-data
-            android:name="com.samsung.systemui.facewidget.executable"
-            android:resource="@raw/facewidgets" />
-
         <provider
           android:name="androidx.core.content.FileProvider"
           android:authorities="${applicationId}.fileprovider"