Remove modeline pylint checker

We're deprecating vim modelines in favor of `.editorconfig`.

.pylintrc

@@ -4,7 +4,6 @@
 ignore=resources.py
 extension-pkg-whitelist=PyQt5,sip
 load-plugins=qute_pylint.config,
-             qute_pylint.modeline,
              pylint.extensions.docstyle,
              pylint.extensions.emptystring,
              pylint.extensions.overlapping_exceptions,

scripts/dev/pylint_checkers/qute_pylint/modeline.py

@@ -1,63 +0,0 @@
-# Copyright 2014-2021 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
-# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
-
-# This file is part of qutebrowser.
-#
-# qutebrowser is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# qutebrowser is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with qutebrowser.  If not, see <https://www.gnu.org/licenses/>.
-
-"""Checker for vim modelines in files."""
-
-import os.path
-import contextlib
-
-from pylint import interfaces, checkers
-
-
-class ModelineChecker(checkers.BaseChecker):
-
-    """Check for vim modelines in files."""
-
-    __implements__ = interfaces.IRawChecker
-
-    name = 'modeline'
-    msgs = {'W9102': ('Does not have vim modeline', 'modeline-missing', None),
-            'W9103': ('Modeline is invalid', 'invalid-modeline', None),
-            'W9104': ('Modeline position is wrong', 'modeline-position', None)}
-    options = ()
-    priority = -1
-
-    def process_module(self, node):
-        """Process the module."""
-        if os.path.basename(os.path.splitext(node.file)[0]) == '__init__':
-            return
-        max_lineno = 1
-        with contextlib.closing(node.stream()) as stream:
-            for (lineno, line) in enumerate(stream):
-                if lineno == 1 and line.startswith(b'#!'):
-                    max_lineno += 1
-                    continue
-                elif line.startswith(b'# vim:'):
-                    if lineno > max_lineno:
-                        self.add_message('modeline-position', line=lineno)
-                    if (line.rstrip() != b'# vim: ft=python '
-                                         b'fileencoding=utf-8 sts=4 sw=4 et:'):
-                        self.add_message('invalid-modeline', line=lineno)
-                    break
-            else:
-                self.add_message('modeline-missing', line=1)
-
-
-def register(linter):
-    """Register the checker."""
-    linter.register_checker(ModelineChecker(linter))

scripts/dev/run_vulture.py

@@ -100,8 +100,6 @@ def whitelist_generator():  # noqa: C901
 
     for attr in ['msgs', 'priority', 'visit_attribute']:
         yield 'scripts.dev.pylint_checkers.config.' + attr
-    for attr in ['visit_call', 'process_module']:
-        yield 'scripts.dev.pylint_checkers.modeline.' + attr
 
     for name, _member in inspect.getmembers(configtypes, inspect.isclass):
         yield 'qutebrowser.config.configtypes.' + name