Revert "Add CAS HAL APEX"

Revert submission 2742398-cas-apex

Reason for revert: culprit for flake b/300311777, verified with go/abtd with 15 runs to make sure the flake is gone https://android-build.googleplex.com/builds/abtd/run/L46500000963034919

Bug:300311777

Reverted changes: /q/submissionid:2742398-cas-apex

Change-Id: Ia13d761d7df501fb30170a69462427198bcf924d
diff --git a/cas/aidl/default/cas-default.rc b/cas/aidl/default/cas-default.rc
index 0ac7fe5..5a60368 100644
--- a/cas/aidl/default/cas-default.rc
+++ b/cas/aidl/default/cas-default.rc
@@ -1,4 +1,4 @@
-service vendor.cas-default /apex/com.android.hardware.cas/bin/hw/android.hardware.cas-service.example
+service vendor.cas-default /vendor/bin/hw/android.hardware.cas-service.example
     interface aidl android.hardware.cas.IMediaCasService/default
     class hal
     user media