diff --git a/scripts/builders/isbuilding.v2 b/scripts/builders/isbuilding.v2
index ef353c5ad3..050b893c1a 100755
--- a/scripts/builders/isbuilding.v2
+++ b/scripts/builders/isbuilding.v2
@@ -27,20 +27,6 @@ class ResultAccumulator(CallbackBase):
         self.host_status[result._host.get_name()] = 'failed'
 
 
-class CallbackModule(CallbackBase):
-    def v2_runner_on_unreachable(self, result):
-        self._display.display("%s  down" % result._host.get_name())
-
-    def v2_runner_on_ok(self, result, *args, **kwargs):
-        if result._result.get('stdout', '').strip() == 'none':
-            self._display.display('%s  no' % result._host.get_name())
-        else:
-            self._display.display('%s  yes' % result._host.get_name())
-
-    def v2_runner_on_failed(self, result, *args, **kwargs):
-        self._display.display('%s: command failed on host' % result._host.get_name())
-
-
 if __name__ == '__main__':
     pattern = 'builders'
     if len(sys.argv) > 1: