Merge "Revert "Introduce initOrder for apex-system-services.""

...content/pm/parsing/component/ParsedApexSystemService.java

...ent/pm/parsing/component/ParsedApexSystemServiceImpl.java

...nt/pm/parsing/component/ParsedApexSystemServiceUtils.java

core/res/res/values/attrs_manifest.xml

services/core/java/com/android/server/pm/ApexManager.java

...ore/java/com/android/server/pm/ApexSystemServiceInfo.java

services/java/com/android/server/SystemServer.java

...xsystemservices/apexes/test_com.android.server/Android.bp

...rvices/apexes/test_com.android.server/AndroidManifest.xml

services/tests/apexsystemservices/service/Android.bp

...src/com/android/server/testing/FakeApexSystemService.java

...rc/com/android/server/testing/FakeApexSystemService2.java

...s/src/com/android/server/ApexSystemServicesTestCases.java

...vicestests/src/com/android/server/pm/ApexManagerTest.java