Drop type:ignore codes made unused by newer argcomplete

The lint job's mypy hook installs an unpinned argcomplete (>=3.1); recent
releases (3.7+) ship type information, so the `no-untyped-call` codes on the
argcomplete.split_line / argcomplete.debug calls and on
ExtendedCompletionFinder() are now unused, which mypy reports as errors under
warn_unused_ignores. Remove just those codes, keeping the still-needed
`attr-defined` codes and the `no-untyped-call` ignores on the super()
_get_completions/_get_option_completions calls, which remain untyped.

Verified with argcomplete 3.7.1 (as resolved in CI) and mypy 2.3.0.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VaKDJ3fpGf7anQeYeBsJbk

Author: claude

traitlets/config/argcomplete_config.py

@@ -45,7 +45,7 @@ def get_argcomplete_cwords() -> list[str] | None:
             _cword_suffix,
             comp_words,
             _last_wordbreak_pos,
-        ) = argcomplete.split_line(comp_line, comp_point)  # type:ignore[attr-defined,no-untyped-call]
+        ) = argcomplete.split_line(comp_line, comp_point)  # type:ignore[attr-defined]
     except ModuleNotFoundError:
         return None
 
@@ -73,7 +73,7 @@ def increment_argcomplete_index() -> None:
         os.environ["_ARGCOMPLETE"] = str(int(os.environ["_ARGCOMPLETE"]) + 1)
     except Exception:
         try:
-            argcomplete.debug("Unable to increment $_ARGCOMPLETE", os.environ["_ARGCOMPLETE"])  # type:ignore[attr-defined,no-untyped-call]
+            argcomplete.debug("Unable to increment $_ARGCOMPLETE", os.environ["_ARGCOMPLETE"])  # type:ignore[attr-defined]
         except (KeyError, ModuleNotFoundError):
             pass
 
@@ -194,7 +194,7 @@ def _get_completions(self, comp_words: list[str], cword_prefix: str, *args: t.An
         # Instead, check if comp_words only consists of the script,
         # if so check if any subcommands start with cword_prefix.
         if self.subcommands and len(comp_words) == 1:
-            argcomplete.debug("Adding subcommands for", cword_prefix)  # type:ignore[attr-defined,no-untyped-call]
+            argcomplete.debug("Adding subcommands for", cword_prefix)  # type:ignore[attr-defined]
             completions.extend(subc for subc in self.subcommands if subc.startswith(cword_prefix))
 
         return completions

traitlets/config/loader.py

@@ -1133,7 +1133,7 @@ def _argcomplete(self, classes: list[t.Any], subcommands: SubcommandsDict | None
 
         from . import argcomplete_config
 
-        finder = argcomplete_config.ExtendedCompletionFinder()  # type:ignore[no-untyped-call]
+        finder = argcomplete_config.ExtendedCompletionFinder()
         finder.config_classes = classes
         finder.subcommands = list(subcommands or [])
         # for ease of testing, pass through self._argcomplete_kwargs if set