lint: Remove stale compose_error linter rule.

The module has been renamed, but also the original linter rule was
likely ineffective because of the length of compose_banner calls
anyway.

I'm not particularly worried about future internationalization bugs
here, so removing seems better than replacing it.

tools/linter_lib/custom_check.py

@@ -152,11 +152,6 @@ js_rules = RuleList(
             "description": "Strings passed to $().text should be wrapped in $t() for internationalization",
             "exclude": {"frontend_tests/node_tests/"},
         },
-        {
-            "pattern": r"""compose_error\(["']""",
-            "description": "Argument to compose_error should be a literal string translated "
-            "by $t_html()",
-        },
         {
             "pattern": r"ui.report_success\(",
             "description": "Deprecated function, use ui_report.success.",