Update test validator now warning source is fixed

PyConf/tests/qmtest/test_example.qmt

@@ -18,12 +18,7 @@ Run the example options and ensure they produce no warnings or errors.
   <text>$PYCONFROOT/options/example.py</text>
 </set></argument>
 <argument name="validator"><text>
-# Expect exactly two warnings:
-#
-#     * Unable to locate service "EventSelector"
-#     * No events will be processed from external input.
-#
-countErrorLines({"FATAL": 0, "ERROR": 0, "WARNING": 2})
+countErrorLines({"FATAL": 0, "ERROR": 0, "WARNING": 0})
 
 # The second instance of IntDataProducer should be in DEBUG
 if "Gaudi__Examples__IntDataProducer      DEBUG" in stdout: