Merge pull request #10066 from tk0miya/mypy-0.931-4.x

Fix mypy violations (with mypy-0.931)

Author: tk0miya

sphinx/directives/patches.py

@@ -83,7 +83,7 @@ def run(self) -> Sequence[Node]:
                 # docutils' meta nodes aren't picklable because the class is nested
                 meta.__class__ = addnodes.meta
 
-        return result  # type: ignore
+        return result
 
 
 class RSTTable(tables.RSTTable):