distro: Clear references to the store in static binaries.

* distro/packages/base.scm (%static-binaries): Clear references to the
  store path for files in $out/bin.

distro/packages/base.scm

@@ -2036,6 +2036,10 @@ store.")
                                      (string-append bin "/" name)))))
                       (alist-delete "coreutils" %build-inputs))
 
+            ;; Clear references to the store path.
+            (for-each remove-store-references
+                      (directory-contents bin))
+
             #t)))))
     (description "Statically-linked bootstrap binaries")
     (long-description