removed unnecessary parenthesis

Co-Authored-By: aqurilla <[email protected]>

Author: datapythonista

scripts/validate_docstrings.py

@@ -494,7 +494,7 @@ def first_line_ends_in_dot(self):
 
     @property
     def deprecated_with_directive(self):
-        return ('.. deprecated:: ' in (self.summary + self.extended_summary))
+        return '.. deprecated:: ' in (self.summary + self.extended_summary)
 
     @property
     def deprecated(self):