Remove libarcmounter dependency in Vold

Due to rerouting ArcBridge call through System Server, Vold doesn't need
to depend on ArcBridge-related C++ library anymore.

Bug: 64500663
Test: Compiled.
Change-Id: Ic93cbc8cec8496784960d5093fb7b12d43574ced

Android.bp

@@ -137,9 +137,6 @@ cc_library_static {
                 "arc_services_aidl",
                 "libarcobbvolume",
             ],
-            shared_libs: [
-                "libarcmounter",
-            ],
         },
     },
 }
@@ -159,10 +156,6 @@ cc_binary {
                 "arc_services_aidl",
                 "libarcobbvolume",
             ],
-            shared_libs: [
-                "libarcmounter",
-            ],
-
         },
     },
     init_rc: ["vold.rc"],