Remove deprecated `sphinx.pycode.ast.parse()` (#11371)

CHANGES

@@ -18,6 +18,7 @@ Incompatible changes
 * #11366: Make ``locale`` a required argument to
   ``sphinx.util.i18n.format_date()``.
 * #11370: Remove deprecated ``sphinx.util.stemmer`` module.
+* #11371: Remove deprecated ``sphinx.pycode.ast.parse()`` function.
 
 Deprecated
 ----------

sphinx/pycode/ast.py

@@ -3,11 +3,8 @@
 from __future__ import annotations
 
 import ast
-import warnings
 from typing import overload
 
-from sphinx.deprecation import RemovedInSphinx70Warning
-
 OPERATORS: dict[type[ast.AST], str] = {
     ast.Add: "+",
     ast.And: "and",
@@ -31,20 +28,6 @@ OPERATORS: dict[type[ast.AST], str] = {
 }
 
 
-def parse(code: str, mode: str = 'exec') -> ast.AST:
-    """Parse the *code* using the built-in ast module."""
-    warnings.warn(
-        "'sphinx.pycode.ast.parse' is deprecated, use 'ast.parse' instead.",
-        RemovedInSphinx70Warning, stacklevel=2,
-    )
-    try:
-        return ast.parse(code, mode=mode, type_comments=True)
-    except SyntaxError:
-        # Some syntax error found. To ignore invalid type comments, retry parsing without
-        # type_comments parameter (refs: https://github.com/sphinx-doc/sphinx/issues/8652).
-        return ast.parse(code, mode=mode)
-
-
 @overload
 def unparse(node: None, code: str = '') -> None:
     ...