Revert "sepolicy(wifi): Allow audio service access from wifi"

This reverts commit 386cf9d95775cdddce70d48015f035dd4dae9b2d.

Reason for revert: Wifi services no longer plan to be a separate
APK/process for mainline. Will instead become a jar loaded from Apex.

Bug: 144722612
Test: Device boots up & connects to wifi networks
Change-Id: Ibb4db9d92c8d9f1170fcc047fa3377eef2acfce6
diff --git a/private/network_stack.te b/private/network_stack.te
index 6db7d8f..583784f 100644
--- a/private/network_stack.te
+++ b/private/network_stack.te
@@ -45,7 +45,6 @@
 ')
 
 # Binder IPC.
-allow network_stack audioserver_service:service_manager find;
 allow network_stack network_score_service:service_manager find;
 allow network_stack network_stack_service:service_manager find;
 allow network_stack radio_service:service_manager find;