remove deprecated Command autocompletion parameter

3 files changed, 2 insertions, 49 deletions

diff --git a/CHANGES.rst b/CHANGES.rst
index 7f288fe..cc12060 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -9,6 +9,8 @@ Unreleased
 -   Remove previously deprecated code. :pr:`2130`
 
     -   ``Group.resultcallback`` is renamed to ``result_callback``.
+    -   ``autocompletion`` parameter to ``Command`` is renamed to
+        ``shell_complete``.
 
 -   Single options boolean flags with ``show_default=True`` only show
     the default if it is ``True``. :issue:`1971`
diff --git a/src/click/core.py b/src/click/core.py
index 667dcee..ba6877b 100644
--- a/src/click/core.py
+++ b/src/click/core.py
@@ -2009,11 +2009,6 @@ class Parameter:
                 t.Union[t.List["CompletionItem"], t.List[str]],
             ]
         ] = None,
-        autocompletion: t.Optional[
-            t.Callable[
-                [Context, t.List[str], str], t.List[t.Union[t.Tuple[str, str], str]]
-            ]
-        ] = None,
     ) -> None:
         self.name, self.opts, self.secondary_opts = self._parse_decls(
             param_decls or (), expose_value
@@ -2037,36 +2032,6 @@ class Parameter:
         self.is_eager = is_eager
         self.metavar = metavar
         self.envvar = envvar
-
-        if autocompletion is not None:
-            import warnings
-
-            warnings.warn(
-                "'autocompletion' is renamed to 'shell_complete'. The old name is"
-                " deprecated and will be removed in Click 8.1. See the docs about"
-                " 'Parameter' for information about new behavior.",
-                DeprecationWarning,
-                stacklevel=2,
-            )
-
-            def shell_complete(
-                ctx: Context, param: "Parameter", incomplete: str
-            ) -> t.List["CompletionItem"]:
-                from click.shell_completion import CompletionItem
-
-                out = []
-
-                for c in autocompletion(ctx, [], incomplete):  # type: ignore
-                    if isinstance(c, tuple):
-                        c = CompletionItem(c[0], help=c[1])
-                    elif isinstance(c, str):
-                        c = CompletionItem(c)
-
-                    if c.value.startswith(incomplete):
-                        out.append(c)
-
-                return out
-
         self._custom_shell_complete = shell_complete
 
         if __debug__:
diff --git a/tests/test_shell_completion.py b/tests/test_shell_completion.py
index 8338d0e..08fa057 100644
--- a/tests/test_shell_completion.py
+++ b/tests/test_shell_completion.py
@@ -161,20 +161,6 @@ def test_option_custom():
     assert _get_words(cli, ["a", "b"], "c") == ["C"]
 
 
-def test_autocompletion_deprecated():
-    # old function takes args and not param, returns all values, can mix
-    # strings and tuples
-    def custom(ctx, args, incomplete):
-        assert isinstance(args, list)
-        return [("art", "x"), "bat", "cat"]
-
-    with pytest.deprecated_call():
-        cli = Command("cli", params=[Argument(["x"], autocompletion=custom)])
-
-    assert _get_words(cli, [], "") == ["art", "bat", "cat"]
-    assert _get_words(cli, [], "c") == ["cat"]
-
-
 def test_option_multiple():
     cli = Command(
         "type",