Revert "Basic %ignore implementation"

This reverts commit 22e2fe9

lark/load_grammar.py

@@ -1270,7 +1270,7 @@ def rule_dependencies(symbol):
         self._definitions = {k: v for k, v in self._definitions.items() if k in _used}
 
 
-    def resolve_import(self, dotted_path: Tuple[str, ...], base_path: Optional[str]) -> Tuple[str, Union[str, PackageResource]]:
+    def resolve_import(self, dotted_path: Tuple[str, ...], base_path: Optional[str]) -> tuple[str, Union[str, PackageResource]]:
         assert dotted_path
         grammar_path = os.path.join(*dotted_path) + EXT
         to_try = self.import_paths + ([base_path] if base_path is not None else []) + [stdlib_loader]

tests/test_grammar.py

@@ -164,15 +164,6 @@ def test_import_custom_sources3(self):
         x = p.parse('12 capybaras')
         self.assertEqual(x.children, ['12', 'capybaras'])
 
-    def test_include(self):
-        grammar = """
-        start: startab
-        %include .grammars.ab
-        """
-        p = Lark(grammar, source_path=__file__)
-        self.assertEqual(p.parse('ab'),
-                         Tree('start', [Tree('startab', [Tree('expr', [Token('A', 'a'), Token('B', 'b')])])]))
-
     def test_find_grammar_errors(self):
         text = """
         a: rule