Disable startup provider from LegacyCellBroadcastContentProvider

Bug: 198104615
Test: atest android.telephony.cts.CellBroadcastDataMigrationTest#testLegacyContentProvider
Change-Id: I5f38dea9a6a4dfc39956adb55f17321899fb91fa
diff --git a/legacy/AndroidManifest.xml b/legacy/AndroidManifest.xml
index 33a3744..898bf3f 100644
--- a/legacy/AndroidManifest.xml
+++ b/legacy/AndroidManifest.xml
@@ -17,6 +17,7 @@
  */
 -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="com.android.cellbroadcastreceiver"
     android:versionCode="300000000"
     android:versionName="R-initial">
@@ -33,5 +34,10 @@
           android:authorities="cellbroadcast-legacy"
           android:readPermission="android.permission.READ_CELL_BROADCASTS"
           android:exported="true" />
+      <provider
+          android:name="androidx.startup.InitializationProvider"
+          android:exported="false"
+          android:authorities="com.android.cellbroadcastreceiver.androidx-startup"
+          tools:node="remove" />
     </application>
 </manifest>