Removed a Python3-only comment from an example since Python 2 is no longer supported

Author: tleonhardt

examples/python_scripting.py

@@ -27,7 +27,7 @@ def __init__(self):
         # Enable the optional ipy command if IPython is installed by setting use_ipython=True
         super().__init__(use_ipython=True)
         self._set_prompt()
-        self.intro = 'Happy 𝛑 Day.  Note the full Unicode support:  😇  (Python 3 only)  💩'
+        self.intro = 'Happy 𝛑 Day.  Note the full Unicode support:  😇 💩'
         self.locals_in_py = True
 
     def _set_prompt(self):