Fix problem in xpath code with python > 3.6, which doesnt like this explicit exception

Author: kata198

AdvancedHTMLParser/xpath/_body.py

@@ -1,5 +1,5 @@
 '''
-    Copyright (c) 2019 Timothy Savannah under terms of LGPLv3. All Rights Reserved.
+    Copyright (c) 2019, 2023 Timothy Savannah under terms of LGPLv3. All Rights Reserved.
 
     See LICENSE (https://gnu.org/licenses/lgpl-3.0.txt) for more information.
 
@@ -128,8 +128,6 @@ def __iter__(self):
         for bodyElement in self.bodyElements:
             yield bodyElement
 
-        raise StopIteration()
-
 
     def evaluateLevelForTag(self, currentTag):
         '''