[audio_core] Remove unused feature

Forgot to remove the request for /system/data from the CMX
previously.

TEST=none, removing unused request

Change-Id: I7c22dffbd188e8bb94a5dba9914252a2aa5e7760

src/media/audio/audio_core/meta/audio_core.cmx

@@ -14,9 +14,6 @@
         ],
         "services": [
             "fuchsia.scheduler.ProfileProvider"
-        ],
-        "system": [
-            "data/media"
         ]
     }
 }