[cleanup] Remove unneeded apex_service permissions in microdroid

As microdroid doesn't use apex_service.

Bug: 222479468
Test: atest MicrodroidTests MicrodroidHostTests
Change-Id: Ie79473322905bda56c57d91f3c524ad715c99aff
diff --git a/microdroid/system/private/service_contexts b/microdroid/system/private/service_contexts
index 6260c8f..837a28f 100644
--- a/microdroid/system/private/service_contexts
+++ b/microdroid/system/private/service_contexts
@@ -1,4 +1,3 @@
 adb                                       u:object_r:adb_service:s0
-apexservice                               u:object_r:apex_service:s0
 manager                                   u:object_r:service_manager_service:s0
 *                                         u:object_r:default_android_service:s0
diff --git a/microdroid/system/public/type.te b/microdroid/system/public/type.te
index f8f35c5..5b411b6 100644
--- a/microdroid/system/public/type.te
+++ b/microdroid/system/public/type.te
@@ -1,6 +1,5 @@
 # Miscellaneous types
 type adb_service, service_manager_type;
-type apex_service, service_manager_type;
 type default_android_service, service_manager_type;
 type service_manager_service, service_manager_type;
 type system_linker;