[fdiff.thirdparty.fdifflib] remove unnecessary function

Author: chrissimpkins

lib/fdiff/thirdparty/fdifflib.py

@@ -2202,11 +2202,5 @@ def restore(delta, which):
             yield line[2:]
 
 
-def _test():
-    import doctest, difflib
-
-    return doctest.testmod(difflib)
-
-
 if __name__ == "__main__":
-    _test()
+    pass