Android: Remove deprecated extractNativeLibs manifest flag

extractNativeLibs is deprecated. Native lib packaging is already controlled by
packaging.jniLibs.useLegacyPackaging (which we already have), so the manifest override is unnecessary.

Source/Android/app/src/main/AndroidManifest.xml

@@ -44,8 +44,7 @@
         android:supportsRtl="true"
         android:isGame="true"
         android:banner="@drawable/banner_tv"
-        android:hasFragileUserData="true"
-        android:extractNativeLibs="true">
+        android:hasFragileUserData="true">
         <meta-data
             android:name="android.max_aspect"
             android:value="2.1"/>