core/hvm: remove xenstore code

QubesDB does not require setting up directory (and permissions), so just
remove the function.

core-modules/01QubesHVm.py

@@ -434,26 +434,6 @@ class QubesHVm(QubesVm):
 
         self.run_service("qubes.SetGuiMode", input=service_input)
 
-    def create_xenstore_entries(self, xid = None):
-        if dry_run:
-            return
-
-        super(QubesHVm, self).create_xenstore_entries(xid)
-
-        if xid is None:
-            xid = self.xid
-
-        domain_path = xs.get_domain_path(xid)
-
-        # Prepare xenstore directory for tools advertise
-        xs.write('',
-                "{0}/qubes-tools".format(domain_path),
-                '')
-
-        # Allow VM writes there
-        xs.set_permissions('', '{0}/qubes-tools'.format(domain_path),
-                [{ 'dom': xid }])
-
     def _cleanup_zombie_domains(self):
         super(QubesHVm, self)._cleanup_zombie_domains()
         if not self.is_running():