Remove key migration related changes

Migrating keys across UIDs is no longer required

Test: m
Bug: 228999189
Change-Id: I33e85635a4fe82bf1f98a9bfcf505a1067b4ed91
diff --git a/private/access_vectors b/private/access_vectors
index 0f8dd5f..6cd8c4e 100644
--- a/private/access_vectors
+++ b/private/access_vectors
@@ -729,7 +729,6 @@
 	get_state
 	list
 	lock
-	migrate_any_key
 	pull_metrics
 	report_off_body
 	reset
diff --git a/private/system_server.te b/private/system_server.te
index aac29f6..9ccd22d 100644
--- a/private/system_server.te
+++ b/private/system_server.te
@@ -959,9 +959,7 @@
 	clear_ns
 	clear_uid
 	get_state
-	list
 	lock
-	migrate_any_key
 	pull_metrics
 	reset
 	unlock