Revert "Label audio system properties to load IhalAdapterVendorE..."

Revert submission 3350769-ihaladaptervendorextension-so

Reason for revert: culprit for 383260547

Reverted changes: /q/submissionid:3350769-ihaladaptervendorextension-so

Change-Id: I0dc811fa368c8dc7d0b7797a6b68fde58deae9c6
diff --git a/private/property_contexts b/private/property_contexts
index 806718c..a9116b3 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -469,10 +469,6 @@
 # See b/323989070 for the discussion why this approach was chosen.
 ro.audio.ihaladaptervendorextension_enabled u:object_r:system_audio_config_prop:s0 exact bool
 
-# String property used in audioparameterparser.example service to load
-# vendor implementation IHalAdapterVendorExtension
-ro.audio.ihaladaptervendorextension_libname u:object_r:system_audio_config_prop:s0 exact string
-
 persist.config.calibration_fac u:object_r:camera_calibration_prop:s0 exact string
 
 config.disable_cameraservice u:object_r:camera_config_prop:s0 exact bool