Revert "PRELIMINARY: Add dbus-fixed."

This reverts commit 86e3f95a09.

gnu/packages/glib.scm

@@ -116,24 +116,6 @@ (define dbus
 shared NFS home directories.")
     (license license:gpl2+)))                     ; or Academic Free License 2.1
 
-;; XXX This fixed version is needed only for 'dbus-daemon-launch-helper'.
-;; FIXME: Integrate this change into the main 'dbus' package in the next
-;; core-updates cycle.
-(define dbus-fixed
-  (package
-    (inherit dbus)
-    (arguments
-     (substitute-keyword-arguments (package-arguments dbus)
-       ((#:phases phases)
-        `(modify-phases ,phases
-           (add-after
-            'unpack 'add-standard-system-service-dir
-            (lambda _
-              (substitute* "dbus/dbus-sysdeps-util-unix.c"
-                (("standard_search_path\\[\\] =" all)
-                 (format #f "~a ~s" all "/run/current-system/profile/share:")))
-              #t))))))))
-
 (define glib
   (package
    (name "glib")