fix: remove Android Auto manifest entry causing Play Store rejection (#5662)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: jamesarich

androidApp/src/main/AndroidManifest.xml

@@ -125,10 +125,6 @@
             android:name="org.apache.http.legacy"
             android:required="false" />
 
-        <!-- Android Auto: surface MessagingStyle notifications on the car's head unit -->
-        <meta-data
-            android:name="com.google.android.gms.car.application"
-            android:resource="@xml/automotive_app_desc" />
 
         <!-- Default crash collection and analytics off until we (possibly) turn it on in application.onCreate -->
         <meta-data