unnecessary_ignore

Don't ignore a diagnostic code that is not produced.

DON'T specify an ignore for a diagnostic that is not produced.

To enable the unnecessary_ignore rule, add unnecessary_ignore under linter > rules in your analysis_options.yaml file:

linter:
  rules:
    - unnecessary_ignore

If you're instead using the YAML map syntax to configure linter rules, add unnecessary_ignore: true under linter > rules:

linter:
  rules:
    unnecessary_ignore: true