Merge pull request #1541 from PyCQA/unused-function

remove function made unused by off_by_default refactor

src/flake8/options/manager.py

@@ -407,24 +407,6 @@ def add_option(self, *args: Any, **kwargs: Any) -> None:
             self.config_options_dict[name.replace("_", "-")] = option
         LOG.debug('Registered option "%s".', option)
 
-    def remove_from_default_ignore(self, error_codes: Sequence[str]) -> None:
-        """Remove specified error codes from the default ignore list.
-
-        :param error_codes:
-            List of strings that are the error/warning codes to attempt to
-            remove from the extended default ignore list.
-        """
-        LOG.debug("Removing %r from the default ignore list", error_codes)
-        for error_code in error_codes:
-            try:
-                self.extended_default_ignore.remove(error_code)
-            except (ValueError, KeyError):
-                LOG.debug(
-                    "Attempted to remove %s from default ignore"
-                    " but it was not a member of the list.",
-                    error_code,
-                )
-
     def extend_default_ignore(self, error_codes: Sequence[str]) -> None:
         """Extend the default ignore list with the error codes provided.