Revert "Move aidl_lazy_test_server to system_ext"

Revert submission 1209453-aidl-lazy-presubmit

Reason for revert: b/148282665. A test has begun to fail on git_stage-aosp-master, and I need to verify whether these changes are responsible.

Reverted Changes:
Ib09a2460e: Add aidl_lazy_test to general-tests
Ib08989356: Move aidl_lazy_test_server to system_ext
I694e6ad35: Add aidl_lazy_test_server to Cuttlefish
I65db12c63: Add aidl_lazy_test to presubmit
I7ec80a280: Dynamically stop services with multiple interfaces...

Change-Id: I55f6b0f7800f348259787f62c6faa19a90f8bdcc
diff --git a/private/file_contexts b/private/file_contexts
index 0ef820a..c7729d8 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -342,6 +342,7 @@
 /system/bin/simpleperf_app_runner    u:object_r:simpleperf_app_runner_exec:s0
 /system/bin/notify_traceur\.sh       u:object_r:notify_traceur_exec:s0
 /system/bin/migrate_legacy_obb_data\.sh u:object_r:migrate_legacy_obb_data_exec:s0
+/system/bin/aidl_lazy_test_server    u:object_r:aidl_lazy_test_server_exec:s0
 /system/bin/android\.frameworks\.automotive\.display@1\.0-service u:object_r:automotive_display_exec:s0
 
 #############################
@@ -444,8 +445,6 @@
 /(system_ext|system/system_ext)/etc/selinux/system_ext_service_contexts     u:object_r:service_contexts_file:s0
 /(system_ext|system/system_ext)/etc/selinux/system_ext_mac_permissions\.xml u:object_r:mac_perms_file:s0
 
-/(system_ext|system/system_ext)/bin/aidl_lazy_test_server   u:object_r:aidl_lazy_test_server_exec:s0
-
 #############################
 # Vendor files from /(product|system/product)/vendor_overlay
 #