Remove unnecessary permission

There will likely be no need for platform apps
to call the timedetector_service; it was added
in error.

Bug: 78217059
Test: build / boot
Change-Id: Ie299c92a60f26fe6cb00562219e386a9f13e459f

private/platform_app.te

@@ -66,7 +66,6 @@ allow platform_app mediadrmserver_service:service_manager find;
 allow platform_app persistent_data_block_service:service_manager find;
 allow platform_app radio_service:service_manager find;
 allow platform_app thermal_service:service_manager find;
-allow platform_app timedetector_service:service_manager find;
 allow platform_app timezone_service:service_manager find;
 allow platform_app app_api_service:service_manager find;
 allow platform_app system_api_service:service_manager find;